diff --git a/20 PrůzkumFotek/analyze_all.py b/20 PrůzkumFotek/analyze_all.py
new file mode 100644
index 0000000..358f2b2
--- /dev/null
+++ b/20 PrůzkumFotek/analyze_all.py	
@@ -0,0 +1,164 @@
+import sys, io
+sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8')
+
+import psycopg2
+
+conn = psycopg2.connect(host='192.168.1.76', port=5432, dbname='fotky_buzalkovi',
+                        user='vladimir.buzalka', password='Vlado7309208104++')
+cur = conn.cursor()
+
+# 1. Duplikáty sha256_pixels
+print('=== DUPLIKÁTY sha256_pixels ===')
+cur.execute('''SELECT sha256_pixels, COUNT(*) as cnt FROM photos
+    WHERE sha256_pixels IS NOT NULL GROUP BY sha256_pixels HAVING COUNT(*) > 1
+    ORDER BY cnt DESC LIMIT 10''')
+for r in cur.fetchall():
+    print(f'  {r[0][:16]}... : {r[1]}x')
+cur.execute('''SELECT COUNT(*), SUM(cnt) FROM (
+    SELECT COUNT(*) as cnt FROM photos WHERE sha256_pixels IS NOT NULL
+    GROUP BY sha256_pixels HAVING COUNT(*) > 1) x''')
+r = cur.fetchone()
+print(f'Celkem skupin duplikátů: {r[0]}, fotek v duplikátech: {r[1]}')
+
+# 2. Identické phash
+print('\n=== IDENTICKÉ phash ===')
+cur.execute('''SELECT phash, COUNT(*) as cnt FROM photos
+    WHERE phash IS NOT NULL GROUP BY phash HAVING COUNT(*) > 1
+    ORDER BY cnt DESC LIMIT 10''')
+for r in cur.fetchall():
+    print(f'  phash={r[0]}: {r[1]}x')
+cur.execute('''SELECT COUNT(*), SUM(cnt) FROM (
+    SELECT COUNT(*) as cnt FROM photos WHERE phash IS NOT NULL
+    GROUP BY phash HAVING COUNT(*) > 1) x''')
+r = cur.fetchone()
+print(f'Celkem skupin: {r[0]}, fotek: {r[1]}')
+
+# 3. Screenshoty
+print('\n=== SCREENSHOTY ===')
+cur.execute('SELECT COUNT(*) FROM photos WHERE is_screenshot = true')
+print(f'is_screenshot=true: {cur.fetchone()[0]}')
+
+# 4. Objektivy
+print('\n=== TOP OBJEKTIVY ===')
+cur.execute('''SELECT COALESCE(lens_model, '(neuvedeno)') as lens, COUNT(*) as cnt
+    FROM photos GROUP BY lens ORDER BY cnt DESC LIMIT 15''')
+for r in cur.fetchall():
+    print(f'  {r[1]:>6}  {r[0]}')
+
+# 5. ISO distribuce
+print('\n=== ISO DISTRIBUCE ===')
+cur.execute('''SELECT iso, COUNT(*) as cnt FROM photos WHERE iso IS NOT NULL
+    GROUP BY iso ORDER BY cnt DESC LIMIT 15''')
+for r in cur.fetchall():
+    print(f'  ISO {r[0]:>6}: {r[1]}')
+
+# 6. Clona
+print('\n=== CLONA (aperture) TOP ===')
+cur.execute('''SELECT aperture, COUNT(*) as cnt FROM photos WHERE aperture IS NOT NULL
+    GROUP BY aperture ORDER BY cnt DESC LIMIT 15''')
+for r in cur.fetchall():
+    print(f'  f/{r[0]}: {r[1]}')
+
+# 7. Expoziční čas
+print('\n=== EXPOZIČNÍ ČAS TOP ===')
+cur.execute('''SELECT exposure_time, COUNT(*) as cnt FROM photos WHERE exposure_time IS NOT NULL
+    GROUP BY exposure_time ORDER BY cnt DESC LIMIT 15''')
+for r in cur.fetchall():
+    print(f'  {r[0]}: {r[1]}')
+
+# 8. GPS top lokace
+print('\n=== GPS TOP LOKACE (zaokrouhleno na 0.1 stupne) ===')
+cur.execute('''SELECT ROUND(gps_lat::numeric, 1) as lat, ROUND(gps_lon::numeric, 1) as lon, COUNT(*) as cnt
+    FROM photos WHERE gps_lat IS NOT NULL AND gps_lon IS NOT NULL
+    GROUP BY lat, lon ORDER BY cnt DESC LIMIT 20''')
+for r in cur.fetchall():
+    print(f'  [{r[0]}, {r[1]}]: {r[2]} fotek')
+
+cur.execute('''SELECT MIN(gps_lat), MAX(gps_lat), MIN(gps_lon), MAX(gps_lon)
+    FROM photos WHERE gps_lat IS NOT NULL''')
+r = cur.fetchone()
+print(f'  Rozsah Lat: {r[0]} .. {r[1]}')
+print(f'  Rozsah Lon: {r[2]} .. {r[3]}')
+
+# 9. Megapixely po letech
+print('\n=== PRUMERNE MEGAPIXELY PO LETECH ===')
+cur.execute('''SELECT EXTRACT(YEAR FROM taken_at)::INT as rok,
+    ROUND(AVG(megapixels)::numeric, 1) as avg_mp,
+    ROUND(MAX(megapixels)::numeric, 1) as max_mp, COUNT(*) as cnt
+    FROM photos WHERE taken_at IS NOT NULL AND megapixels IS NOT NULL
+    GROUP BY rok ORDER BY rok''')
+for r in cur.fetchall():
+    print(f'  {r[0]}: avg={r[1]} MP, max={r[2]} MP ({r[3]} fotek)')
+
+# 10. Formáty
+print('\n=== FORMATY ===')
+cur.execute('''SELECT COALESCE(file_ext, '(none)') as ext, COUNT(*) as cnt
+    FROM photos GROUP BY ext ORDER BY cnt DESC''')
+for r in cur.fetchall():
+    print(f'  {r[0]}: {r[1]}')
+
+# 11. Průhlednost
+print('\n=== PRUHLEDNOST ===')
+cur.execute('SELECT COUNT(*) FROM photos WHERE has_transparency = true')
+print(f'  S pruhlednosti: {cur.fetchone()[0]}')
+
+# 12. Barevné módy
+print('\n=== BAREVNE MODY ===')
+cur.execute('''SELECT COALESCE(mode, '(none)') as m, COUNT(*) as cnt
+    FROM photos GROUP BY m ORDER BY cnt DESC''')
+for r in cur.fetchall():
+    print(f'  {r[0]}: {r[1]}')
+
+# 13. Neznámé fotky - vzory názvů
+print('\n=== NEZNAME FOTKY 2015-2016 (bez kamery) - vzory nazvu ===')
+cur.execute('''SELECT file_name FROM photos
+    WHERE camera_model IS NULL AND EXTRACT(YEAR FROM taken_at) BETWEEN 2015 AND 2016
+    LIMIT 30''')
+for r in cur.fetchall():
+    print(f'  {r[0]}')
+
+print('\n=== NEZNAME FOTKY 2022 - vzory nazvu ===')
+cur.execute('''SELECT file_name FROM photos
+    WHERE camera_model IS NULL AND EXTRACT(YEAR FROM taken_at) = 2022
+    LIMIT 30''')
+for r in cur.fetchall():
+    print(f'  {r[0]}')
+
+print('\n=== 2022 PREFIXES ===')
+cur.execute('''SELECT LEFT(file_name, 10) as prefix, COUNT(*) as cnt FROM photos
+    WHERE camera_model IS NULL AND EXTRACT(YEAR FROM taken_at) = 2022
+    GROUP BY prefix ORDER BY cnt DESC LIMIT 15''')
+for r in cur.fetchall():
+    print(f'  {r[0]}: {r[1]}')
+
+# 14. Měsíce
+print('\n=== FOTKY PO MESICICH ===')
+nazvy = ['','Leden','Unor','Brezen','Duben','Kveten','Cerven','Cervenec','Srpen','Zari','Rijen','Listopad','Prosinec']
+cur.execute('''SELECT EXTRACT(MONTH FROM taken_at)::INT as mesic, COUNT(*) as cnt
+    FROM photos WHERE taken_at IS NOT NULL GROUP BY mesic ORDER BY mesic''')
+for r in cur.fetchall():
+    print(f'  {nazvy[r[0]]}: {r[1]}')
+
+# 15. Dny v týdnu
+print('\n=== FOTKY PO DNECH V TYDNU ===')
+dny = ['Nedele','Pondeli','Utery','Streda','Ctvrtek','Patek','Sobota']
+cur.execute('''SELECT EXTRACT(DOW FROM taken_at)::INT as den, COUNT(*) as cnt
+    FROM photos WHERE taken_at IS NOT NULL GROUP BY den ORDER BY den''')
+for r in cur.fetchall():
+    print(f'  {dny[r[0]]}: {r[1]}')
+
+# 16. Hodiny
+print('\n=== FOTKY PO HODINACH ===')
+cur.execute('''SELECT EXTRACT(HOUR FROM taken_at)::INT as hod, COUNT(*) as cnt
+    FROM photos WHERE taken_at IS NOT NULL GROUP BY hod ORDER BY hod''')
+for r in cur.fetchall():
+    print(f'  {r[0]:02d}:00 - {r[1]}')
+
+# 17. Top dny (události)
+print('\n=== TOP 20 DNU (nejvic fotek = udalosti) ===')
+cur.execute('''SELECT taken_at::date as den, COUNT(*) as cnt
+    FROM photos WHERE taken_at IS NOT NULL GROUP BY den ORDER BY cnt DESC LIMIT 20''')
+for r in cur.fetchall():
+    print(f'  {r[0]}: {r[1]} fotek')
+
+conn.close()
diff --git a/20 PrůzkumFotek/report.py b/20 PrůzkumFotek/report.py
new file mode 100644
index 0000000..9cf27b6
--- /dev/null
+++ b/20 PrůzkumFotek/report.py	
@@ -0,0 +1,361 @@
+import streamlit as st
+import psycopg2
+import pandas as pd
+import plotly.express as px
+import plotly.graph_objects as go
+
+st.set_page_config(page_title="FotkyBuzalkovi - Report", layout="wide", page_icon="📷")
+
+@st.cache_resource
+def get_conn():
+    return psycopg2.connect(
+        host="192.168.1.76", port=5432, dbname="fotky_buzalkovi",
+        user="vladimir.buzalka", password="Vlado7309208104++"
+    )
+
+def q(sql, params=None):
+    conn = get_conn()
+    return pd.read_sql(sql, conn, params=params)
+
+
+st.title("📷 FotkyBuzalkovi — Průzkum dat")
+
+# --- Celkové statistiky ---
+st.header("Celkové statistiky")
+c1, c2, c3, c4 = st.columns(4)
+counts = q("""
+    SELECT
+        (SELECT COUNT(*) FROM photos) as photos,
+        (SELECT COUNT(*) FROM photos WHERE exif_raw IS NOT NULL AND exif_raw != '{}') as s_exif,
+        (SELECT COUNT(*) FROM photos WHERE gps_lat IS NOT NULL) as s_gps,
+        (SELECT COUNT(*) FROM photos WHERE camera_model IS NOT NULL) as s_camera
+""").iloc[0]
+c1.metric("Celkem fotek", f"{counts['photos']:,}")
+c2.metric("S EXIF daty", f"{counts['s_exif']:,}")
+c3.metric("S GPS", f"{counts['s_gps']:,}")
+c4.metric("S kamerou", f"{counts['s_camera']:,}")
+
+# --- Zálohovací pipeline ---
+st.subheader("Zálohovací pipeline (sběr fotek)")
+z1, z2, z3 = st.columns(3)
+zcounts = q("""
+    SELECT
+        (SELECT COUNT(*) FROM zaloha_obrazku) as zalohy,
+        (SELECT COUNT(*) FROM zdrojove_soubory) as zdroje,
+        (SELECT COUNT(*) FROM zdrojove_soubory) - (SELECT COUNT(*) FROM zaloha_obrazku) as duplikaty
+""").iloc[0]
+z1.metric("Unikátních záloh", f"{zcounts['zalohy']:,}")
+z2.metric("Zdrojových souborů", f"{zcounts['zdroje']:,}")
+z3.metric("Duplikátních výskytů", f"{zcounts['duplikaty']:,}")
+
+st.divider()
+
+# --- Fotky po letech ---
+st.header("📅 Fotky po letech")
+df_years = q("""
+    SELECT EXTRACT(YEAR FROM taken_at)::INT as rok, COUNT(*) as pocet
+    FROM photos WHERE taken_at IS NOT NULL
+    GROUP BY rok ORDER BY rok
+""")
+fig = px.bar(df_years, x="rok", y="pocet", text="pocet",
+             labels={"rok": "Rok", "pocet": "Počet fotek"})
+fig.update_traces(textposition="outside", texttemplate="%{text:,}")
+fig.update_layout(height=450)
+st.plotly_chart(fig, use_container_width=True)
+
+# --- Fotoaparáty po letech ---
+st.header("📸 Fotoaparáty po letech")
+df_cam = q("""
+    SELECT EXTRACT(YEAR FROM taken_at)::INT as rok,
+           COALESCE(camera_model, '(neznámý)') as model,
+           COUNT(*) as pocet
+    FROM photos WHERE taken_at IS NOT NULL
+    GROUP BY rok, model ORDER BY rok, pocet DESC
+""")
+
+selected_year = st.selectbox("Vyber rok:", sorted(df_cam["rok"].unique()), index=len(df_cam["rok"].unique())-5)
+df_year_cam = df_cam[df_cam["rok"] == selected_year].head(15)
+fig_cam = px.bar(df_year_cam, x="model", y="pocet", text="pocet",
+                 labels={"model": "Fotoaparát", "pocet": "Počet fotek"},
+                 title=f"Fotoaparáty v roce {selected_year}")
+fig_cam.update_traces(textposition="outside")
+fig_cam.update_layout(xaxis_tickangle=-45, height=500)
+st.plotly_chart(fig_cam, use_container_width=True)
+
+# Heatmapa kamery × rok (top 15 kamer celkově)
+st.subheader("Heatmapa: top kamery × roky")
+top_cameras = q("""
+    SELECT camera_model, COUNT(*) as cnt FROM photos
+    WHERE camera_model IS NOT NULL
+    GROUP BY camera_model ORDER BY cnt DESC LIMIT 15
+""")["camera_model"].tolist()
+
+df_heat = df_cam[df_cam["model"].isin(top_cameras)].pivot_table(
+    index="model", columns="rok", values="pocet", fill_value=0
+)
+fig_heat = px.imshow(df_heat, labels=dict(x="Rok", y="Fotoaparát", color="Fotek"),
+                     aspect="auto", color_continuous_scale="YlOrRd")
+fig_heat.update_layout(height=500)
+st.plotly_chart(fig_heat, use_container_width=True)
+
+st.divider()
+
+# --- Duplikáty ---
+st.header("🔄 Duplikáty")
+d1, d2 = st.columns(2)
+
+with d1:
+    st.subheader("Identické pixely (sha256_pixels)")
+    df_dup_px = q("""
+        SELECT COUNT(*) as skupin, SUM(cnt) as fotek FROM (
+            SELECT COUNT(*) as cnt FROM photos WHERE sha256_pixels IS NOT NULL
+            GROUP BY sha256_pixels HAVING COUNT(*) > 1
+        ) x
+    """).iloc[0]
+    st.metric("Skupin duplikátů", f"{df_dup_px['skupin']:,}")
+    st.metric("Fotek v duplikátech", f"{df_dup_px['fotek']:,}")
+
+with d2:
+    st.subheader("Vizuálně podobné (phash)")
+    df_dup_ph = q("""
+        SELECT COUNT(*) as skupin, SUM(cnt) as fotek FROM (
+            SELECT COUNT(*) as cnt FROM photos WHERE phash IS NOT NULL
+            GROUP BY phash HAVING COUNT(*) > 1
+        ) x
+    """).iloc[0]
+    st.metric("Skupin podobných", f"{df_dup_ph['skupin']:,}")
+    st.metric("Fotek v podobných skupinách", f"{df_dup_ph['fotek']:,}")
+
+st.divider()
+
+# --- GPS mapa ---
+st.header("🗺️ GPS lokace")
+df_gps = q("""
+    SELECT gps_lat as lat, gps_lon as lon
+    FROM photos WHERE gps_lat IS NOT NULL AND gps_lon IS NOT NULL
+""")
+if not df_gps.empty:
+    df_gps["lat"] = df_gps["lat"].astype(float)
+    df_gps["lon"] = df_gps["lon"].astype(float)
+    st.map(df_gps, size=2)
+
+    st.subheader("Top lokace (zaokrouhleno na 0.1°)")
+    df_gps_top = q("""
+        SELECT ROUND(gps_lat::numeric, 1) as lat, ROUND(gps_lon::numeric, 1) as lon,
+               COUNT(*) as pocet
+        FROM photos WHERE gps_lat IS NOT NULL AND gps_lon IS NOT NULL
+        GROUP BY lat, lon ORDER BY pocet DESC LIMIT 20
+    """)
+    st.dataframe(df_gps_top, use_container_width=True)
+
+st.divider()
+
+# --- Technické parametry ---
+st.header("⚙️ Technické parametry")
+tab_iso, tab_clona, tab_exp, tab_lens = st.tabs(["ISO", "Clona", "Expoziční čas", "Objektivy"])
+
+with tab_iso:
+    df_iso = q("""
+        SELECT iso, COUNT(*) as pocet FROM photos WHERE iso IS NOT NULL
+        GROUP BY iso ORDER BY pocet DESC LIMIT 20
+    """)
+    fig_iso = px.bar(df_iso, x="iso", y="pocet", text="pocet",
+                     labels={"iso": "ISO", "pocet": "Počet fotek"})
+    fig_iso.update_traces(textposition="outside")
+    st.plotly_chart(fig_iso, use_container_width=True)
+
+with tab_clona:
+    df_ap = q("""
+        SELECT aperture, COUNT(*) as pocet FROM photos WHERE aperture IS NOT NULL
+        GROUP BY aperture ORDER BY pocet DESC LIMIT 20
+    """)
+    df_ap["label"] = "f/" + df_ap["aperture"].astype(str)
+    fig_ap = px.bar(df_ap, x="label", y="pocet", text="pocet",
+                    labels={"label": "Clona", "pocet": "Počet fotek"})
+    fig_ap.update_traces(textposition="outside")
+    st.plotly_chart(fig_ap, use_container_width=True)
+
+with tab_exp:
+    df_exp = q("""
+        SELECT exposure_time, COUNT(*) as pocet FROM photos WHERE exposure_time IS NOT NULL
+        GROUP BY exposure_time ORDER BY pocet DESC LIMIT 20
+    """)
+    fig_exp = px.bar(df_exp, x="exposure_time", y="pocet", text="pocet",
+                     labels={"exposure_time": "Expoziční čas", "pocet": "Počet fotek"})
+    fig_exp.update_traces(textposition="outside")
+    fig_exp.update_layout(xaxis_tickangle=-45)
+    st.plotly_chart(fig_exp, use_container_width=True)
+
+with tab_lens:
+    df_lens = q("""
+        SELECT COALESCE(lens_model, '(neuvedeno)') as objektiv, COUNT(*) as pocet
+        FROM photos GROUP BY objektiv ORDER BY pocet DESC LIMIT 15
+    """)
+    st.dataframe(df_lens, use_container_width=True)
+
+st.divider()
+
+# --- Rozlišení po letech ---
+st.header("📐 Megapixely po letech")
+df_mp = q("""
+    SELECT EXTRACT(YEAR FROM taken_at)::INT as rok,
+           ROUND(AVG(megapixels)::numeric, 1) as prumer,
+           ROUND(MAX(megapixels)::numeric, 1) as maximum
+    FROM photos WHERE taken_at IS NOT NULL AND megapixels IS NOT NULL
+    GROUP BY rok ORDER BY rok
+""")
+fig_mp = go.Figure()
+fig_mp.add_trace(go.Scatter(x=df_mp["rok"], y=df_mp["prumer"], mode="lines+markers", name="Průměr MP"))
+fig_mp.add_trace(go.Scatter(x=df_mp["rok"], y=df_mp["maximum"], mode="lines+markers", name="Maximum MP"))
+fig_mp.update_layout(yaxis_title="Megapixely", xaxis_title="Rok", height=400)
+st.plotly_chart(fig_mp, use_container_width=True)
+
+st.divider()
+
+# --- Formáty a barevné módy ---
+st.header("🎨 Formáty a barvy")
+f1, f2 = st.columns(2)
+with f1:
+    st.subheader("Přípony")
+    df_ext = q("""
+        SELECT COALESCE(file_ext, '(none)') as pripona, COUNT(*) as pocet
+        FROM photos GROUP BY pripona ORDER BY pocet DESC
+    """)
+    st.dataframe(df_ext, use_container_width=True)
+
+with f2:
+    st.subheader("Barevné módy")
+    df_mode = q("""
+        SELECT COALESCE(mode, '(none)') as mod, COUNT(*) as pocet
+        FROM photos GROUP BY mod ORDER BY pocet DESC
+    """)
+    fig_mode = px.pie(df_mode, values="pocet", names="mod")
+    st.plotly_chart(fig_mode, use_container_width=True)
+
+st.divider()
+
+# --- Neznámé fotky ---
+st.header("❓ Fotky bez kamery — analýza názvů")
+
+tab_2015, tab_2022 = st.tabs(["2015–2016", "2022"])
+
+with tab_2015:
+    df_unk15 = q("""
+        SELECT file_name, file_size, taken_at, taken_at_source
+        FROM photos
+        WHERE camera_model IS NULL AND EXTRACT(YEAR FROM taken_at) BETWEEN 2015 AND 2016
+        ORDER BY taken_at LIMIT 50
+    """)
+    st.dataframe(df_unk15, use_container_width=True)
+    st.info("Přejmenované importním skriptem — vzor: `[NO MODEL] [MD5...]`")
+
+with tab_2022:
+    df_unk22 = q("""
+        SELECT file_name, file_size, taken_at, taken_at_source
+        FROM photos
+        WHERE camera_model IS NULL AND EXTRACT(YEAR FROM taken_at) = 2022
+        ORDER BY taken_at LIMIT 50
+    """)
+    st.dataframe(df_unk22, use_container_width=True)
+
+    df_prefix = q("""
+        SELECT LEFT(file_name, 10) as prefix, COUNT(*) as pocet FROM photos
+        WHERE camera_model IS NULL AND EXTRACT(YEAR FROM taken_at) = 2022
+        GROUP BY prefix ORDER BY pocet DESC LIMIT 10
+    """)
+    st.subheader("Prefixes")
+    st.dataframe(df_prefix, use_container_width=True)
+    st.info("4 194 z 4 210 importováno najednou 25.9.2023 — pravděpodobně hromadný export z iCloudu/Google Photos")
+
+st.divider()
+
+# --- Časové vzory ---
+st.header("⏰ Časové vzory")
+
+tab_month, tab_dow, tab_hour, tab_topdays = st.tabs(["Měsíce", "Dny v týdnu", "Hodiny", "Top dny (události)"])
+
+with tab_month:
+    df_month = q("""
+        SELECT EXTRACT(MONTH FROM taken_at)::INT as mesic, COUNT(*) as pocet
+        FROM photos WHERE taken_at IS NOT NULL GROUP BY mesic ORDER BY mesic
+    """)
+    nazvy = {1:'Leden',2:'Únor',3:'Březen',4:'Duben',5:'Květen',6:'Červen',
+             7:'Červenec',8:'Srpen',9:'Září',10:'Říjen',11:'Listopad',12:'Prosinec'}
+    df_month["nazev"] = df_month["mesic"].map(nazvy)
+    fig_m = px.bar(df_month, x="nazev", y="pocet", text="pocet",
+                   labels={"nazev": "Měsíc", "pocet": "Počet fotek"})
+    fig_m.update_traces(textposition="outside")
+    st.plotly_chart(fig_m, use_container_width=True)
+
+with tab_dow:
+    df_dow = q("""
+        SELECT EXTRACT(DOW FROM taken_at)::INT as den, COUNT(*) as pocet
+        FROM photos WHERE taken_at IS NOT NULL GROUP BY den ORDER BY den
+    """)
+    dny = {0:'Neděle',1:'Pondělí',2:'Úterý',3:'Středa',4:'Čtvrtek',5:'Pátek',6:'Sobota'}
+    df_dow["nazev"] = df_dow["den"].map(dny)
+    fig_d = px.bar(df_dow, x="nazev", y="pocet", text="pocet",
+                   labels={"nazev": "Den", "pocet": "Počet fotek"})
+    fig_d.update_traces(textposition="outside")
+    st.plotly_chart(fig_d, use_container_width=True)
+
+with tab_hour:
+    df_hour = q("""
+        SELECT EXTRACT(HOUR FROM taken_at)::INT as hodina, COUNT(*) as pocet
+        FROM photos WHERE taken_at IS NOT NULL GROUP BY hodina ORDER BY hodina
+    """)
+    fig_h = px.bar(df_hour, x="hodina", y="pocet", text="pocet",
+                   labels={"hodina": "Hodina", "pocet": "Počet fotek"})
+    fig_h.update_traces(textposition="outside", texttemplate="%{text:,}")
+    fig_h.update_layout(xaxis=dict(dtick=1))
+    st.plotly_chart(fig_h, use_container_width=True)
+
+with tab_topdays:
+    df_topdays = q("""
+        SELECT taken_at::date as den, COUNT(*) as pocet
+        FROM photos WHERE taken_at IS NOT NULL
+        GROUP BY den ORDER BY pocet DESC LIMIT 30
+    """)
+    fig_td = px.bar(df_topdays, x="den", y="pocet", text="pocet",
+                    labels={"den": "Datum", "pocet": "Počet fotek"})
+    fig_td.update_traces(textposition="outside")
+    fig_td.update_layout(xaxis_tickangle=-45, height=500)
+    st.plotly_chart(fig_td, use_container_width=True)
+
+st.divider()
+
+# --- EXIF pokrytí ---
+st.header("📊 EXIF pokrytí")
+df_coverage = q("""
+    SELECT
+        COUNT(*) FILTER (WHERE exif_raw IS NOT NULL AND exif_raw != '{}') as s_exif,
+        COUNT(*) FILTER (WHERE taken_at IS NOT NULL) as s_taken_at,
+        COUNT(*) FILTER (WHERE camera_model IS NOT NULL) as s_camera,
+        COUNT(*) FILTER (WHERE iso IS NOT NULL) as s_iso,
+        COUNT(*) FILTER (WHERE gps_lat IS NOT NULL) as s_gps,
+        COUNT(*) FILTER (WHERE aperture IS NOT NULL) as s_aperture,
+        COUNT(*) FILTER (WHERE lens_model IS NOT NULL) as s_lens,
+        COUNT(*) as celkem
+    FROM photos
+""").iloc[0]
+
+categories = ["EXIF data", "Datum pořízení", "Model kamery", "ISO", "Clona", "GPS", "Objektiv"]
+values = [
+    int(df_coverage["s_exif"]), int(df_coverage["s_taken_at"]),
+    int(df_coverage["s_camera"]), int(df_coverage["s_iso"]),
+    int(df_coverage["s_aperture"]), int(df_coverage["s_gps"]),
+    int(df_coverage["s_lens"])
+]
+total = int(df_coverage["celkem"])
+pct = [round(v / total * 100, 1) for v in values]
+
+fig_cov = go.Figure(go.Bar(
+    x=pct, y=categories, orientation='h',
+    text=[f"{v:,} ({p}%)" for v, p in zip(values, pct)],
+    textposition="auto"
+))
+fig_cov.update_layout(xaxis_title="% fotek", height=350)
+st.plotly_chart(fig_cov, use_container_width=True)
+
+st.divider()
+st.caption("FotkyBuzalkovi — data z PostgreSQL 192.168.1.76 / fotky_buzalkovi")
diff --git a/SCHEMA.md b/SCHEMA.md
new file mode 100644
index 0000000..557d1ae
--- /dev/null
+++ b/SCHEMA.md
@@ -0,0 +1,171 @@
+# Databázové schéma — fotky_buzalkovi
+
+PostgreSQL 192.168.1.76:5432, databáze `fotky_buzalkovi`.
+
+---
+
+## Skupina 1: Zpracované fotky
+
+Tyto tabulky obsahují naparsované informace o fotkách — EXIF, hashe, metadata, tagy.
+Jsou základem pro veškerou další práci (vyhledávání, deduplikace, organizace).
+
+### photos (85 833 záznamů)
+
+Hlavní tabulka. Každý řádek = jedna unikátní fotka identifikovaná hashem `sha256_file`.
+
+| Sloupec | Typ | Nullable | Default | Popis |
+|---------|-----|----------|---------|-------|
+| **id** | BIGSERIAL | NO | autoincrement | PK |
+| **sha256_file** | CHAR(64) | NO | — | SHA-256 celého souboru (UNIQUE) |
+| sha256_pixels | CHAR(64) | YES | — | SHA-256 pixelových dat (odhalí změnu jen v metadatech) |
+| phash | BIGINT | YES | — | Perceptuální hash (vizuální podobnost) |
+| dhash | BIGINT | YES | — | Difference hash (vizuální podobnost) |
+| **file_path** | VARCHAR(2000) | NO | — | Absolutní cesta k souboru |
+| file_path_relative | VARCHAR(2000) | YES | — | Relativní cesta |
+| **file_name** | VARCHAR(500) | NO | — | Název souboru |
+| file_stem | VARCHAR(500) | YES | — | Název bez přípony |
+| file_ext | VARCHAR(20) | YES | — | Přípona (.jpg, .png, …) |
+| file_size | BIGINT | YES | — | Velikost v bajtech |
+| mime_type | VARCHAR(50) | YES | — | MIME typ (image/jpeg, …) |
+| format | VARCHAR(20) | YES | — | Formát obrázku (JPEG, PNG, …) |
+| mode | VARCHAR(20) | YES | — | Barevný mód (RGB, L, RGBA, …) |
+| width | INT | YES | — | Šířka v pixelech |
+| height | INT | YES | — | Výška v pixelech |
+| megapixels | NUMERIC | YES | — | Rozlišení v megapixelech |
+| has_transparency | BOOLEAN | YES | false | Má alfa kanál |
+| icc_profile | BOOLEAN | YES | false | Obsahuje ICC profil |
+| embedded_thumbnail | BOOLEAN | YES | false | Obsahuje vložený náhled |
+| taken_at | TIMESTAMPTZ | YES | — | Datum pořízení fotky |
+| taken_at_source | VARCHAR(20) | YES | — | Zdroj datumu (exif / mtime / …) |
+| mtime | TIMESTAMPTZ | YES | — | Datum poslední modifikace souboru |
+| collected_at | TIMESTAMPTZ | YES | — | Datum sběru/importu do pipeline |
+| camera_make | VARCHAR(100) | YES | — | Výrobce fotoaparátu |
+| camera_model | VARCHAR(255) | YES | — | Model fotoaparátu |
+| lens_model | VARCHAR(255) | YES | — | Model objektivu |
+| iso | INT | YES | — | ISO citlivost |
+| aperture | NUMERIC | YES | — | Clona (f/2.8, …) |
+| exposure_time | VARCHAR(30) | YES | — | Expoziční čas (1/250, …) |
+| focal_length_mm | NUMERIC | YES | — | Ohnisková vzdálenost v mm |
+| gps_lat | NUMERIC | YES | — | GPS šířka |
+| gps_lon | NUMERIC | YES | — | GPS délka |
+| gps_altitude | NUMERIC | YES | — | GPS nadmořská výška |
+| is_screenshot | BOOLEAN | YES | false | Detekováno jako screenshot |
+| face_count | INT | YES | — | Počet detekovaných obličejů |
+| exif_raw | JSONB | YES | — | Kompletní surová EXIF data |
+| iptc_raw | JSONB | YES | — | Kompletní surová IPTC data |
+| xmp_raw | JSONB | YES | — | Kompletní surová XMP data |
+| imported_at | TIMESTAMPTZ | YES | now() | Kdy byl záznam vložen do DB |
+| processing_status | VARCHAR(50) | YES | 'pending' | Stav zpracování |
+
+**Indexy:**
+- `photos_pkey` — PK (id)
+- `photos_sha256_file_key` — UNIQUE (sha256_file)
+- `idx_photos_sha256_pixels` — (sha256_pixels)
+- `idx_photos_phash` — (phash)
+- `idx_photos_taken_at` — (taken_at)
+- `idx_photos_camera_model` — (camera_model)
+- `idx_photos_file_name` — (file_name)
+- `idx_photos_file_ext` — (file_ext)
+- `idx_photos_exif_gin` — GIN (exif_raw)
+
+---
+
+### tags
+
+Hierarchická tabulka tagů. Podporuje stromovou strukturu přes `parent_tag_id`.
+
+| Sloupec | Typ | Nullable | Default | Popis |
+|---------|-----|----------|---------|-------|
+| **id** | SERIAL | NO | autoincrement | PK |
+| **name** | VARCHAR(100) | NO | — | Název tagu |
+| parent_tag_id | INT | YES | — | Rodičovský tag (FK → tags.id) |
+
+**Constrainty:**
+- PK (id)
+- UNIQUE (name, parent_tag_id) — stejný název může existovat pod různými rodiči
+- FK parent_tag_id → tags(id)
+
+---
+
+### photo_tags
+
+Vazební tabulka M:N mezi `photos` a `tags`.
+
+| Sloupec | Typ | Nullable | Default | Popis |
+|---------|-----|----------|---------|-------|
+| **photo_id** | BIGINT | NO | — | FK → photos(id) ON DELETE CASCADE |
+| **tag_id** | INT | NO | — | FK → tags(id) ON DELETE CASCADE |
+| source | VARCHAR(20) | YES | — | Zdroj tagu (manual / auto / …) |
+| created_at | TIMESTAMPTZ | YES | now() | Kdy byl tag přiřazen |
+
+**Constrainty:**
+- PK (photo_id, tag_id)
+- FK photo_id → photos(id) ON DELETE CASCADE
+- FK tag_id → tags(id) ON DELETE CASCADE
+
+---
+
+## Skupina 2: Sběr a záloha fotek
+
+Tyto tabulky slouží **výhradně** pro proces sběru fotek ze všech počítačů na jedno centrální
+úložiště (Tower1). Neobsahují žádné informace o obsahu fotek — jen evidenci, odkud byly
+soubory sebrány a kam byly zálohovány. S dalším zpracováním (EXIF, tagy, organizace) nemají
+nic společného.
+
+Skript: `00 PictureCollector/collect_pictures.py` (Linux) / `collect_pictures_windows.py` (Windows)
+
+### zaloha_obrazku (39 961 záznamů)
+
+Každý řádek = jeden unikátní soubor fyzicky uložený v záloze (identifikovaný BLAKE3 hashem).
+
+| Sloupec | Typ | Nullable | Default | Popis |
+|---------|-----|----------|---------|-------|
+| **id** | SERIAL | NO | autoincrement | PK |
+| **blake3_hash** | VARCHAR(64) | NO | — | BLAKE3 hash souboru (UNIQUE) |
+| **cesta_zalohy** | TEXT | NO | — | Cesta k záloze na Tower1 |
+| **nazev_souboru** | VARCHAR(512) | NO | — | Název souboru |
+| velikost | BIGINT | YES | — | Velikost v bajtech |
+| datum_kopirovani | TIMESTAMP | YES | now() | Kdy byl soubor zkopírován |
+
+**Indexy:**
+- `zaloha_obrazku_pkey` — PK (id)
+- `zaloha_obrazku_blake3_hash_key` — UNIQUE (blake3_hash)
+- `idx_zaloha_hash` — (blake3_hash)
+
+---
+
+### zdrojove_soubory (45 090 záznamů)
+
+Každý řádek = jeden nalezený zdrojový soubor na nějakém počítači. Stejný soubor (stejný
+BLAKE3 hash) může mít více záznamů, pokud existuje na různých místech/počítačích.
+
+| Sloupec | Typ | Nullable | Default | Popis |
+|---------|-----|----------|---------|-------|
+| **id** | SERIAL | NO | autoincrement | PK |
+| **hostname** | VARCHAR(255) | NO | — | Název počítače, kde byl soubor nalezen |
+| **cesta_zdroje** | TEXT | NO | — | Původní cesta k souboru |
+| **nazev_souboru** | VARCHAR(512) | NO | — | Název souboru |
+| velikost | BIGINT | YES | — | Velikost v bajtech |
+| datum_nalezeni | TIMESTAMP | YES | now() | Kdy byl soubor nalezen |
+| **blake3_hash** | VARCHAR(64) | NO | — | BLAKE3 hash souboru |
+| zaloha_id | INT | YES | — | FK → zaloha_obrazku(id) |
+
+**Constrainty:**
+- PK (id)
+- UNIQUE (hostname, cesta_zdroje) — každý soubor z každého PC jen jednou
+- FK zaloha_id → zaloha_obrazku(id)
+
+**Indexy:**
+- `idx_zdroj_hash` — (blake3_hash)
+- `idx_zdroj_zaloha` — (zaloha_id)
+- `idx_zdroj_host` — (hostname)
+
+---
+
+## Poznámky
+
+- Počty záznamů jsou k datu 2026-05-24.
+- Tabulka `cameras` z původního `create_schema.py` v DB neexistuje — informace o kameře
+  jsou přímo ve sloupcích `camera_make` / `camera_model` v tabulce `photos`.
+- EXIF parser: ExifRead (Pillow má bug v GPS).
+- Tabulky skupiny 1 a skupiny 2 zatím nejsou propojené (žádný FK mezi `photos` a `zaloha_obrazku`).