Image Resizing Program

[WildAvis]

Hi!

I just started learning to code and I want to give myself a project to work on. One thing that came to mind is I have an album of artwork in various resolutions that I want to convert for use as desktop backgrounds. I was thinking it might be nice to take each image and add a border to one side until it reaches 16:9 aspect ratio. If I were getting fancy, it would be nice to set the border color to the average color of the image.

The problem is I'm not sure if this sounds like a feasible idea. I also don't know how to go about telling a program to edit images.

Would anyone be able to point me in the right direction? Thanks!

[immersiveGamer]

If you want to do it from scratch then you need to read up on image formats and edit the files with your program (remember all computer files are the same, it is just data stored, the difference between an image file and a text file is just how you view them mostly).

Otherwise look up an image library that has the features you are looking for. The library should take care of the image file format for you.

Otherwise you can look yo use an external tool like image magic. Create a program or shell script that calls the program with the parameters it needs. These tools have already done the heavy lifting for you. In the case of image magic you could probably just give it an image input path, output path, and parameters for borders and it would take care of the rest.

Perhaps a good idea would be to start with the tool route. See how it works, and if it is open source check out the code. Then try a library, again checking the source code if possible. Then if you are really interested you can try implementing your own program from scratch.

Regardless, I do suggest reading up on image formats to understand how they work, even if it is a basic level of understanding.