I need to know how feasible is it to write a function in java to read a ppm file and convert it to jpg
or bmp
format.
Anyone has experience with this? I am able to achieve the goal using tools such as ImageMagick
but I want to do it in pure Java
way.
I would search for ImageMagick Application Programmer Interfaces. They have interfaces for every significant language.
I find the Java philosophy is to extensively research what already exists, find the best solution for your needs, then write the minimal code needed to interface to it. This is a pure Java way.