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feat: add sepia function in helpers.c #22

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Merged
harshsankhla18 merged 1 commit into from
Oct 22, 2025
Merged

feat: add sepia function in helpers.c #22

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27 changes: 25 additions & 2 deletions helpers.c
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Original file line number Diff line number Diff line change
Expand Up @@ -61,7 +61,30 @@ void invert(int height, int width, RGBTRIPLE image[height][width]){
}
void sepia(int height, int width, RGBTRIPLE image[height][width]){

// Convert image to sepia
for (int i = 0; i < height; i++)
{
for (int j = 0; j < width; j++)
{
int originalRed = image[i][j].rgbtRed;
int originalGreen = image[i][j].rgbtGreen;
int originalBlue = image[i][j].rgbtBlue;

int sepiaRed = round(0.393 * originalRed + 0.769 * originalGreen + 0.189 * originalBlue);
int sepiaGreen = round(0.349 * originalRed + 0.686 * originalGreen + 0.168 * originalBlue);
int sepiaBlue = round(0.272 * originalRed + 0.534 * originalGreen + 0.131 * originalBlue);

if (sepiaRed > 255)
sepiaRed = 255;
if (sepiaGreen > 255)
sepiaGreen = 255;
if (sepiaBlue > 255)
sepiaBlue = 255;

image[i][j].rgbtRed = sepiaRed;
image[i][j].rgbtGreen = sepiaGreen;
image[i][j].rgbtBlue = sepiaBlue;
}
}

}

Expand Down Expand Up @@ -128,7 +151,7 @@ void blur(int height, int width, RGBTRIPLE image[height][width]){

// Blur image

}

void vignette(int height, int width, RGBTRIPLE image[height][width]){
float cx = width / 2.0; // center of the image
float cy= height / 2.0;
Expand Down
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