How to use the command ppmmix (with examples)
The ppmmix
command is used to blend together two PPM (Portable Pixmap) images. It allows you to specify the weight or control the opacity/transparency of each image in the blend.
Use case 1: Blend specified PPM images using fadefactor
Code:
ppmmix fadefactor path/to/input_file1.ppm path/to/input_file2.ppm > path/to/output_file.ppm
Motivation: This use case is useful when you want to combine two PPM images and control the weight or transparency of each image in the blend. The fadefactor allows you to specify the ratio or balance between the two images.
Explanation:
ppmmix
: The command to blend PPM images.fadefactor
: The factor that controls the weight or opacity of each image in the blend. It takes a value between 0 and 1, where 0 means the first image is completely transparent and 1 means the first image is completely opaque.path/to/input_file1.ppm
: The path to the first input PPM image.path/to/input_file2.ppm
: The path to the second input PPM image.path/to/output_file.ppm
: The path to the output blended PPM image.
Example output: If we have two input PPM images, input_file1.ppm and input_file2.ppm, and want to blend them with a fadefactor of 0.5, the command would be:
ppmmix 0.5 path/to/input_file1.ppm path/to/input_file2.ppm > path/to/output_file.ppm
The resulting output_file.ppm would be a blend of the two input images with an equal weight of 0.5 each, resulting in a semi-transparent blend of the two images.