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phase 1 & 2 fix pic scale

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This commit is contained in:
Julian Freeman
2026-01-18 23:03:13 -04:00
parent 8a92eea397
commit a588caf743
2 changed files with 7 additions and 78 deletions
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78
src-tauri/src/lib.rs
View File

@@ -33,147 +33,75 @@ fn scan_dir(path: String) -> Result<Vec<ImageItem>, String> {
}
use image::GenericImageView;
use image::Pixel;
#[derive(serde::Serialize)]
struct ZcaResult {
x: f64,
y: f64,
zone: String,
}
#[tauri::command]
fn get_zca_suggestion(path: String) -> Result<ZcaResult, String> {
let img = image::open(&path).map_err(|e| e.to_string())?;
let (width, height) = img.dimensions();
let bottom_start_y = (height as f64 * 0.8) as u32;
let zone_height = height - bottom_start_y;
let zone_width = width / 3;
let zones = [
("Left", 0, bottom_start_y),
("Center", zone_width, bottom_start_y),
("Right", zone_width * 2, bottom_start_y),
];
let mut min_std_dev = f64::MAX;
let mut best_zone = "Center";
let mut best_pos = (0.5, 0.9); // Default center
for (name, start_x, start_y) in zones.iter() {
let mut luma_values = Vec::with_capacity((zone_width * zone_height) as usize);
for y in *start_y..height {
for x in *start_x..(*start_x + zone_width) {
if x >= width { continue; }
let pixel = img.get_pixel(x, y);
let rgb = pixel.to_rgb();
let luma = 0.299 * rgb[0] as f64 + 0.587 * rgb[1] as f64 + 0.114 * rgb[2] as f64;
luma_values.push(luma);
}
}
let count = luma_values.len() as f64;
if count == 0.0 { continue; }
let mean = luma_values.iter().sum::<f64>() / count;
let variance = luma_values.iter().map(|v| (v - mean).powi(2)).sum::<f64>() / count;
let std_dev = variance.sqrt();
if std_dev < min_std_dev {
min_std_dev = std_dev;
best_zone = name;
let center_x_px = *start_x as f64 + (zone_width as f64 / 2.0);
let center_y_px = *start_y as f64 + (zone_height as f64 / 2.0);
// Position closer to bottom (75% of the zone height instead of 50%)
// Zone starts at 80%. Height is 20%. 0.8 + 0.2 * 0.75 = 0.95
let center_y_px = *start_y as f64 + (zone_height as f64 * 0.75);
best_pos = (center_x_px / width as f64, center_y_px / height as f64);
}
}
Ok(ZcaResult {
x: best_pos.0,
y: best_pos.1,
zone: best_zone.to_string(),
})
}
#[cfg_attr(mobile, tauri::mobile_entry_point)]
pub fn run() {
tauri::Builder::default()
.plugin(tauri_plugin_dialog::init())
.invoke_handler(tauri::generate_handler![scan_dir, get_zca_suggestion])
.run(tauri::generate_context!())
.expect("error while running tauri application");
}

7
src/components/HeroView.vue
View File

@@ -6,11 +6,12 @@ const store = useGalleryStore();
</script>
<template>
<div class="w-full h-full flex items-center justify-center bg-black relative">
<div v-if="store.selectedImage" class="relative max-w-full max-h-full">
<div class="w-full h-full flex items-center justify-center bg-black relative p-4 overflow-hidden">
<div v-if="store.selectedImage" class="relative inline-flex justify-center items-center" style="max-width: 100%; max-height: 100%;">
<img
:src="convertFileSrc(store.selectedImage.path)"
class="max-w-full max-h-full object-contain"
class="max-w-full max-h-full w-auto h-auto block shadow-lg"
style="max-height: calc(100vh - 10rem);"
alt="Hero Image"
/>
<!-- Watermark Overlay Placeholder -->