cross hatching in my images

[jimmyh1555]

HELP last night when I imaged Jupiter, and also the moon with my ASI224 colour and stacked it in Autostakkert, then went to Registrax 6 to do the wavelets, there was this horrible cross hatching across the whole image on the laptop screen. very fine and small grid pattern it was. What is it? Any ideas? Maybe the laptop resolution?, or some funny setting in the camera, or the software...

[raymo]

When the screen is blown up to 500% I would say that you either took the shot through a trellis fence, or its a close up of your camera's sensor.
Certainly nothing I've ever seen before, but I expect someone will know.
raymo

[sharkbite]

I used to get this with my 224

This has to do with debayering somehow.

Being a beginner myself I dont understand why , but running
Footage through pipp with auto debayering gets rid of it.

[Nikolas]

yep it's not debayered which is why the shot looks like that.
Did you shoot in RAW?

[speach]

Had the same problem it was debayering find out what the debayer pattern of your sensor is and the apply it to the processing and the problem will be solved.

[LewisM]

Need to debayer ALL OSC cameras before stacking them, otherwise you get THAT trellis/tartan effect. And it needs to be the CORRECT matrix - easiest way is to photograph something in the day through a pinhole cover on the camera (camera obscura), then change the settings until the colour represents what you see (I initially do it with parked cars and trees).

The only way also to get a grey scale image with an OSC is to first make it colour, then in post-processing convert it back to greyscale.

[jimmyh1555]

Thanks, folks. I will try debayering, but not very sure what that involves. Is it a button in Sharpcap?. What do you mean by a pinhole, Lewis? Literally a pinhole in a piec e of black plastic, or something?
ALSO I cant do anything now, Switched on my Lenovo laptop last night and got......ZILCH a blue screen with the heading "Choose your keyboard LAYOUT" Now it wont even boot up Completely stuffed. I HATE Windows 10. I suppose I will have to find a computer guru now!

[sharkbite]

Hi Jimmy -

Sharcap doesn't do it.

the way i do it is to run the .ser (or .avi) file through pipp
with debayering set to auto.

The handy thing about pipp is that you can crop to just the planet,
so autostakkert processing is much faster.

[LewisM]

I hear youwr pain with Lenovo - mine went black screen last night watching Netflix...still had audio etc, but no video. Had to reboot.

I am getting really close to wiping back to Win7.

Pin hole in a piece of black plastic stretched over the cam will work well. Or even foil (you can get reflection issues).Then do some SHORT exposure shots and debayer till you get the right colour combo.

Can't advise on any software "buttons" apart from CCDStack and PixInsight as that is all I use for images (I use Sharpcap but never ventured beyond the polar alignment)

[ChrisV]

If you want a free option. Fitswork will debayer. It's good for that and a quick stretch.

[jimmyh1555]

I put the .avi file into PIPP (after I downloaded PIPP from internet onto my steam driven old laptop - windows 7 professional ) - it was of Joop. Only 90 seconds, BUT....4241 frames! It is still crunching through Pipp as I type (on my Linux lappie!). I'll be up half the night! Will it output a debayered .avi file?:eyepop: