Plants are green because of the main photosynthetic pigment in chloroplasts. chlorophyll

Plants are green because of chlorophyll, the main photosynthetic pigment in chloroplasts.

Explanation: Chlorophyll, the primary pigment used in photosynthesis, reflects green light and absorbs red and blue light most strongly. In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll.

I know it's way late just here to help out others.

edge enhancement

Explanation:

Edge Improvement is an image processing filter that enhances the edge contrast of an image or video in an effort to improve its sharpness. Edge enhancement does not enhance subtle details found in more uniform areas of the image, such as texture or grain appearing in flat or smooth areas of the image. The filter works by marking the sharp edge boundaries of the image, the edge between a subject and the contrasting color background, and increasing the image contrast in the area around the edge.