in c code: write a code in c to draw a 128x128 pixel image with each pixel value decided by the user and save the data in a png file, also the possibility to load the image and modify specific pixel in python

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <png.h>

#define IMG_WIDTH 128
#define IMG_HEIGHT 128

void drawImage(uint8_t* pixels) {
    // Create 24-bit RGB image
    uint8_t* image = (uint8_t*) calloc(IMG_WIDTH * IMG_HEIGHT * 3, sizeof(uint8_t));

    for(int i = 0; i < IMG_HEIGHT; i++) {
        for(int j = 0; j < IMG_WIDTH; j++) {
            int index = (i * IMG_WIDTH + j) * 3;

            // Set pixel color
            int pixel_val = pixels[i * IMG_WIDTH + j];
            image[index] = pixel_val;
            image[index + 1] = pixel_val;
            image[index + 2] = pixel_val;
        }
    }

    // Write image to PNG file
    FILE* fp = fopen("output.png", "wb");
    if(!fp) {
        fprintf(stderr, "Unable to open file for writing\n");
        exit(EXIT_FAILURE);
    }

    png_structp png = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
    if(!png) {
        fprintf(stderr, "Unable to create PNG write struct\n");
        exit(EXIT_FAILURE);
    }

    png_infop info = png_create_info_struct(png);
    if(!info) {
        fprintf(stderr, "Unable to create PNG info struct\n");
        exit(EXIT_FAILURE);
    }

    if(setjmp(png_jmpbuf(png))) {
        fprintf(stderr, "Unable to write PNG image\n");
        exit(EXIT_FAILURE);
    }

    png_init_io(png, fp);

    png_set_IHDR(png, info, IMG_WIDTH, IMG_HEIGHT, 8, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);

    png_write_info(png, info);

    uint8_t** row_pointers = (uint8_t**) malloc(sizeof(uint8_t*) * IMG_HEIGHT);
    for(int i = 0; i < IMG_HEIGHT; i++) {
        row_pointers[i] = &image[i * IMG_WIDTH * 3];
    }

    png_write_image(png, row_pointers);

    png_write_end(png, NULL);

    // Clean up
    png_destroy_write_struct(&png, &info);
    free(row_pointers);
    free(image);
    fclose(fp);

    printf("Image saved to output.png\n");
}

int main(int argc, char** argv) {
    // Set pixel values
    uint8_t pixels[IMG_WIDTH * IMG_HEIGHT] = { 0 };
    for(int i = 0; i < IMG_HEIGHT; i++) {
        for(int j = 0; j < IMG_WIDTH; j++) {
            int index = i * IMG_WIDTH + j;
            pixels[index] = (i + j) % 256;
        }
    }

    // Draw image and save to file
    drawImage(pixels);

    return 0;
}
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main.py
from PIL import Image

# Load image and get pixel values
im = Image.open("output.png")
pixels = im.load()

# Set specific pixel value
pixels[10, 10] = (255, 255, 255)

# Save modified image
im.save("modified.png")
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