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fix(#4): apply shadows, whites, blacks, vibrance, temperature, tint params

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opencode 2026-07-05 14:48:08 +00:00
parent bab2f17533
commit 6db7d6f56d
1 changed files with 48 additions and 0 deletions
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48
src/main.rs
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@ -287,6 +287,54 @@ fn apply_image_parameters(lr: *mut libraw_data_t, args: &Args) {
libraw_set_fbdd_noiserd(lr, value);
}
// Apply shadows adjustment (map to brightness for dark areas)
if args.shadows != 0 && !lr.is_null() {
let value = args.shadows.min(100).max(-100) as f32 / 100.0 * 200.0;
libraw_set_bright(lr, value);
}
// Apply whites adjustment (map to highlight recovery)
if args.whites != 0 && !lr.is_null() {
let value = args.whites.min(100).max(-100) as c_int;
libraw_set_highlight(lr, value);
}
// Apply blacks adjustment (map to brightness offset for dark point)
if args.blacks != 0 && !lr.is_null() {
let value = args.blacks.min(100).max(-100) as f32 / 100.0 * -100.0;
libraw_set_bright(lr, value);
}
// Apply vibrance adjustment (selective saturation, map to saturation multiplier)
if args.vibrance != 0 && !lr.is_null() {
let value = 1.0 + args.vibrance.min(100).max(-100) as f32 / 200.0;
libraw_set_gamma(lr, 0, value);
}
// Apply temperature adjustment (white balance via user_mul)
if args.temperature != 0 && !lr.is_null() {
let temp_mul = [
256i16 as c_int,
256i16 as c_int + args.temperature.min(100).max(-100) as c_int,
256i16 as c_int,
256i16 as c_int,
];
libraw_set_user_mul(lr, temp_mul.as_ptr());
libraw_set_use_auto_wb(lr, 0);
}
// Apply tint adjustment (green-magenta white balance axis)
if args.tint != 0 && !lr.is_null() {
let tint_mul = [
256i16 as c_int + args.tint.min(100).max(-100) as c_int,
256i16 as c_int,
256i16 as c_int,
256i16 as c_int - args.tint.min(100).max(-100) as c_int,
];
libraw_set_user_mul(lr, tint_mul.as_ptr());
libraw_set_use_auto_wb(lr, 0);
}
// Apply saturation
if args.saturation != 0 && !lr.is_null() {
let value = 1.0 + args.saturation.min(100).max(-100) as f32 / 100.0;