Feature #11: Color in red

Transform the image to keep only the red component.

Feature description

Transform the image to keep only the red component.

Parameters	value
name	color_red
Command	-c color_red
Input	an image
output	a new image image_out.bmp that keeps only the red component of the input image

Usage

./freud.exe -f images/input/image.jpeg -c color_red

Output

A new image image_out.bmp that keeps only the red component of the input image

Describe tips for implementing feature

Use write_image_data from <estia-image.h> to create new image with the new values.

/**
 * Writes into an image file
 * @param[in] filename Name of the file to be written into
 * @param[in] data Reference to the pixel array to be written
 * @param[in] width Width of the image
 * @param[in] height Height of the image
 * @return 0 on failure and non-0 on success.
 */
int write_image_data(const char *filename, unsigned char *data, int width, int height);

Additional information

Example:

Input	Output