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invert color

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This commit is contained in:
Michał Czyż
2024-07-07 13:51:40 +02:00
parent 05316561f2
commit 0d7e950503
1 changed files with 86 additions and 66 deletions
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40
src/libs/ascii.rs
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@@ -1,9 +1,15 @@
use image;
use image::GenericImageView;
use crate::libs::args; use crate::libs::args;
use colored::Colorize; use colored::Colorize;
use image;
use image::GenericImageView;
fn grayscale_ascii(img: &image::DynamicImage, width: u32, height: u32, invert: bool, pixel_size: usize) -> String { fn grayscale_ascii(
img: &image::DynamicImage,
width: u32,
height: u32,
invert: bool,
pixel_size: usize,
) -> String {
let mut ascii_img = String::new(); let mut ascii_img = String::new();
for y in 0..height { for y in 0..height {
@@ -34,22 +40,36 @@ fn grayscale_ascii(img: &image::DynamicImage, width: u32, height: u32, invert: b
ascii_img ascii_img
} }
fn colorful_ascii(img: &image::DynamicImage, width: u32, height: u32, pixel_size: usize) -> String { fn colorful_ascii(
img: &image::DynamicImage,
width: u32,
height: u32,
invert: bool,
pixel_size: usize,
) -> String {
let mut ascii_img = String::new(); let mut ascii_img = String::new();
for y in 0..height { for y in 0..height {
for x in 0..width { for x in 0..width {
let pixel = img.get_pixel(x, y); let pixel = img.get_pixel(x, y);
let red = pixel[0]; let mut red = pixel[0];
let green = pixel[1]; let mut green = pixel[1];
let blue = pixel[2]; let mut blue = pixel[2];
let pixel_iterator: Vec<u16> = vec![red.into(), green.into(), blue.into()]; let pixel_iterator: Vec<u16> = vec![red.into(), green.into(), blue.into()];
let darkest_color: &u16 = pixel_iterator.iter().min().unwrap(); let darkest_color: &u16 = pixel_iterator.iter().min().unwrap();
let brightest_color: &u16 = pixel_iterator.iter().max().unwrap(); let brightest_color: &u16 = pixel_iterator.iter().max().unwrap();
let brightness = ((darkest_color + brightest_color) / 2) as u8; let mut brightness = ((darkest_color + brightest_color) / 2) as u8;
if invert {
red = 255 - red;
green = 255 - green;
blue = 255 - blue;
brightness = 255 - brightness;
}
let mut char_pixel = select_char(&brightness).repeat(pixel_size); let mut char_pixel = select_char(&brightness).repeat(pixel_size);
@@ -80,7 +100,7 @@ fn select_char(brightness: &u8) -> String {
char.into() char.into()
} }
fn select_dominant_color(pixel : (u8, u8, u8), char_pixel: String) -> String { fn select_dominant_color(pixel: (u8, u8, u8), char_pixel: String) -> String {
let (red, green, blue) = pixel; let (red, green, blue) = pixel;
let char_pixel = char_pixel.truecolor(red, green, blue).to_string(); let char_pixel = char_pixel.truecolor(red, green, blue).to_string();
@@ -92,7 +112,7 @@ pub fn to_ascii(img: &image::DynamicImage, args: &args::Args) -> String {
let (width, height) = img.dimensions(); let (width, height) = img.dimensions();
if args.colorful { if args.colorful {
return colorful_ascii(img, width, height, args.pixel); return colorful_ascii(img, width, height, args.invert, args.pixel);
} }
grayscale_ascii(img, width, height, args.invert, args.pixel) grayscale_ascii(img, width, height, args.invert, args.pixel)