edit specific pixel data in c in python

To edit specific pixel data in an image in Python, we can use the Pillow library which allows us to load and manipulate image data.

Here's an example of how to edit a specific pixel using a 2D array in Python:


main.py
from PIL import Image

# Load image
image = Image.open('image.jpg')

# Convert image to 2D array
pixels = image.load()

# Set pixel at (x, y) to new color (r, g, b)
x = 50
y = 100
r = 255
g = 0
b = 0
pixels[x, y] = (r, g, b)

# Save image
image.save('new_image.jpg')
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In C, we can also manipulate individual pixels using a 2D array. Here's an example of how to edit a specific pixel in C:


#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "bmp.h"

int main(int argc, char *argv[])
{
    // Load image
    BMPImage image = readImage("image.bmp");

    // Get pixel at (x, y)
    int x = 50;
    int y = 100;
    BMPColor color = getPixel(image, x, y);

    // Set pixel at (x, y) to new color (r, g, b)
    color.r = 255;
    color.g = 0;
    color.b = 0;
    setPixel(image, x, y, color);

    // Save image
    writeImage(image, "new_image.bmp");

    // Free memory
    free(image.pixels);

    return 0;
}
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Note that in C, we need to use a BMP library to handle the image data. In this example, we're using a custom bmp.h library to simplify the process of reading, writing, and manipulating BMP images.

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