Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: ksushaslad on 2021-11-16, 11:10:10

Title: Faded colors after saving from Corona image editor
Post by: ksushaslad on 2021-11-16, 11:10:10
Hi! Images looks good in Corona image editor. But when I save it in jpeg/tiff/tga they look fade and blur. What is the reason?(http://[img][img])[/img][/img]
Title: Re: Faded colors after saving from Corona image editor
Post by: romullus on 2021-11-16, 12:02:15
Hi,

Are you comparing the images at 100% magnification? Corona VFB and windows image viewer uses very different interpolation, so the images will always look different at all but 1:1 zoom level.
Title: Re: Faded colors after saving from Corona image editor
Post by: ksushaslad on 2021-11-16, 14:32:39
Quote from: romullus on 2021-11-16, 12:02:15
Hi,

Are you comparing the images at 100% magnification? Corona VFB and windows image viewer uses very different interpolation, so the images will always look different at all but 1:1 zoom level.

I made screenshot without zoom. So you can see shadows are brighter and all colors at all((
Title: Re: Faded colors after saving from Corona image editor
Post by: TomG on 2021-11-16, 14:36:55
Not sure I'd trust windows viewer, what does it look like opened in an actual software package? (the zoom is not the same in the above btw, when I overlaid the two there is a slight difference).

EDIT - what I am seeing with the overlay is a difference in sharpness, the viewer is showing less detail, so I am not sure there is a color change to shadows so much as just detail being blurred together in the viewer. This is why I'd be interested to know what it looks like in Photoshop etc (you could just post the saved image for us to open and look at)
Title: Re: Faded colors after saving from Corona image editor
Post by: ksushaslad on 2021-11-16, 23:04:11
Quote from: TomG on 2021-11-16, 14:36:55
Not sure I'd trust windows viewer, what does it look like opened in an actual software package? (the zoom is not the same in the above btw, when I overlaid the two there is a slight difference).

EDIT - what I am seeing with the overlay is a difference in sharpness, the viewer is showing less detail, so I am not sure there is a color change to shadows so much as just detail being blurred together in the viewer. This is why I'd be interested to know what it looks like in Photoshop etc (you could just post the saved image for us to open and look at)

thank you for the answer! you can see cxr and jpg files here https://drive.google.com/drive/folders/1EdpN345c5JpygXKTSBEiPg6lCiilYh5f?usp=sharing
Title: Re: Faded colors after saving from Corona image editor
Post by: TomG on 2021-11-17, 15:16:31
Comes back as needs to request access - best to use the private uploader https://corona-renderer.com/upload

Thanks!
Title: Re: Faded colors after saving from Corona image editor
Post by: maru on 2021-11-17, 16:15:18
Is the image viewed in the Corona Image Editor using the CXR format?
If so, then the answer is that in CIE you see an image with a wide color space with gamma 2.2 applied and after saving to jpg you see an image with sRGB gamma applied. That is why the difference is mostly visible in the shadows.
Title: Re: Faded colors after saving from Corona image editor
Post by: ksushaslad on 2021-11-17, 20:52:42
How to save an image so that it looks like in the Corona image editor? Is it possible?