Reducing the file size of a very large images, without changing the image dimensions

Question

Consider an application handling uploading of potentially very large PNG files.

All uploaded files must be stored to disk for later retrieval. However, the PNG files ca

Answer 1

• Step 1: Decrease the image to 1/16 of its original size.
• Step 2: Decrease the amount of colors.
• Step 3: Increase the size of the image back to its original size.