What caused this ?

Just uploaded a bunch of pics I just edited in DPP and adobe ps, all of them seem to have like a high noise issue, but the original image doesn't

We can't tell anything from that image. You'll need to show us 100% crops of the initial image (straight out of DPP) and the final image (after PS editing).

Damo77 wrote in post #9835927
We can't tell anything from that image. You'll need to show us 100% crops of the initial image (straight out of DPP) and the final image (after PS editing).

Sorry, I'll have to get on that. I just figured it was a commin issue people might of had, the red car just seems like it has so much noise. For some reason when saved in gif ( with adobe ) it turned the file like that, switched to jpeg and everything was fine.

That looks like gif compression to me. Not noise.

Edit: that's because it is a GIF. Save as a JPG and it should fix it.

I'm seeing some posterization on the walls too.

Edit: OK... that was with the GIF image.

Damo77 wrote in post #9835927
We can't tell anything from that image. You'll need to show us 100% crops of the initial image (straight out of DPP) and the final image (after PS editing).

You can't tell?

The top image in the first post is a GIF. Only 8bit colour depth for all channels meaning only 256 different colours. You're just getting a dithering effect.

Lower image is a Jpeg - 24-bit (8bit per channel).

90blackcrx,
gif is for graphic images, jpg for photos.