how can decompressed image have color like the input one

[tuanhm11299]

I test your code and when I imshow the decompressed image, it has only black and white :v so I don't know how to restore color for decompressed image in matlab with your code, can you give me idea for this problem ?
Also, I want to calculate MSE, SNR and PSNR but it can't caculate in some picture, and your code run didn't well with .jpg, can you show me your idea for this problem too, please ?
Thank you.

[ahmedmayman]

@tuanhm11299 Unfortunately this implementation is for binarized images, so what you found was expected and I can't help you with the colors.

Also I only tested using png images as .jpg are already compressed images and I needed to test with the original image data.

Do you have any other issues ?

[ahmedmayman]

@tuanhm11299 I updated the description in 3747bf4

[tuanhm11299]

So do you have any ideas with colored images ? I'm doing a project for lzw algorithm with colored images, so do you have any ideas for processing with colored image, and do we need to do step by step like this one ?
https://hackernoon.com/why-do-we-need-jpeg-compression-and-how-its-technically-working-52a3a9ced55d