Pixinsight importing Gray>?

[tingting44]

does anyone have the foggiest why PI is importing my raw dslr as Gray? to the right is the same image open in PS

[CloudMagnet]

Do you have more than 1 layer on the colour image? I found first you need to flatten it and save it under a new name before loading it in Pixinsight.

[tingting44]

i do not mate, its a fresh cr2 file from my canon 7d, never had this before with PI so a bit puzzled to why its doing it now, i only loading it into PS to make sure i was not going crazy and there was colour in the image lol

Edited May 13, 2020 by tingting44

[Scooot]

Go to

View - Format Explorer - Raw - Edit Prefences

and check it’s opening the file as a pure raw file.

[Scooot]

I think you’ve got an Stf auto stretch on. Try this

goto image - screen transfer function - reset auto stretch

[tingting44]

yes i have got stf active, ive reset it but image is still gray, its even got the name gray in the image window which i do not recall ever seeing

[CloudMagnet]

Im not too familiar with the process, but you might need to deBayer the image first before it will show colour.

[Star101]

Have you tried to Debayer the file.. Just open Debayer and drag an instance over to the picture. Make sure you have the correct Debayer matrix selected

[tingting44]

thanks for your tips guys, ive used PI for years and not had this issue, so strange, never had to do anything to my raw files, ill check the debayer now

Edited May 13, 2020 by tingting44

[tingting44]

done the debayer but its given me this weird green image, the name in the window has changed to RGB now so thats a bonus, just do not know why its not liking any of my raw files now

[CloudMagnet]

I suppose if you are only loading in stacked picutres to Pixinsight previously, they would already have been deBayered so wouldnt throw that problem up. Otherwise, I really dont know what caused that.

To fix the green colour, a quick Background neutralization should take care of that.

[Jonk]

You have a green image because you've autostretched the debayered file and you haven't aligned the RGB channels.

Easiest way to do this is LinearFit.

Do an image noise estimation on the debayered file, then check which one has the lowest noise.

Split the file into separate RGB channels, open LinearFit, and choose the image with the lowest noise (either R, G or B in the process window).

Apply the fit to the other 2 channels.

Combine the channels to an RGB image, the you should have the correct colour when you autostetch.

If you struggle, attach the raw file and I'll try it for you.

[tingting44]

thanks a lot guys, you're right i normally work with stacked images in PI, ive been having a play about with old images tonight and they have been single subs, not stacks, so this is why i think, good to know for future if i want to work on single images, not really had much need to work on singles in PI as mostly my singles are for daytime photography which i just use PS, im pretty tired now, ill have a more in depth play tomorrow, thanks a lot for taking the time to help, have a good evening all

 

o7

[Scooot]

My cr2 files open like yours.

The reason you’re seeing the strange green after debayering is because you haven’t applied background neutralisation and colour calibration. Or you could use the photometric colour calibration. 

However if you want a quick way of viewing the cr2 file as a colour image you can open it using the Camera Colour Balance. In View -format explorer - raw- edit settings, change it to the demosaiced RGB and then open the Cr2 file (without debayering it) and apply the STF. 

[david_taurus83]

I've tried to recreate an image similar to your but cant. My cr2 files are set to open in their raw format but nowhere near as bright as yours. Yours looks like a mono image with noise. below left is an uncalibrated cr2 file with half saturated sensor and right is debayered with unlinked stretch.