Hi,
after upgrading to 1.8.8 I found an issue while calibrating my CR2 files from my Canon 600D with already processed files (flats/master darks) in older PI version.
I'm using the "pure RAW" config set.
By investigating the issue I stumbled over the output of the RAW decoder in 1.8.8:
As you can see the resulting Image geometry and the CFA pattern is wrong.
The reported image geometry high is cut of by 1 px. When I open the image with the RAW module without cropping the overscan area, I see the missing top most row in the imported image.
I think that's the reason for the pattern mixup.
For comparison: I could open the file correctly in full patched 1.8.7:
addentum: This occurs for all RAW files, older or newer ones. Canon 600D.
Thank you,
Jürgen
after upgrading to 1.8.8 I found an issue while calibrating my CR2 files from my Canon 600D with already processed files (flats/master darks) in older PI version.
I'm using the "pure RAW" config set.
By investigating the issue I stumbled over the output of the RAW decoder in 1.8.8:
Code:
Reading 1 image(s):
D:/data/Astro/PI/rework/Vega_260mm.CR2
Reading metadata: done
Camera ........... Canon EOS 600D
Timestamp ........ 2018-07-01T21:34:39Z
Exposure ......... 30s
ISO speed ........ 12800
Focal length ..... 50 mm
CFA pattern ...... Bayer GBRG
Raw dimensions ... w=5344 h=3516
Image geometry ... x=142 y=52 w=5202 h=3464
Image rotation ... 90 deg
Raw decoding parameters:
Output mode ............... cfa
Auto crop ................. enabled
Wavelet noise threshold ... 0
White balancing ........... disabled
Black point correction .... disabled
Highlights clipping ....... disabled
Auto rotate ............... disabled
Output image .............. w=5202 h=3464 n=1 Gray
Reading RAW data: done
As you can see the resulting Image geometry and the CFA pattern is wrong.
The reported image geometry high is cut of by 1 px. When I open the image with the RAW module without cropping the overscan area, I see the missing top most row in the imported image.
I think that's the reason for the pattern mixup.
For comparison: I could open the file correctly in full patched 1.8.7:
Code:
Reading 1 image(s):
D:/data/Astro/PI/rework/Vega_260mm.CR2
Reading metadata: done
Camera ........... Canon EOS 600D
Timestamp ........ 2018-07-01T21:34:39Z
Exposure ......... 30s
ISO speed ........ 12800
Focal length ..... 50 mm
CFA pattern ...... Bayer RGGB
Raw dimensions ... w=5344 h=3516
Image geometry ... x=142 y=51 w=5202 h=3465
Image rotation ... 90 deg
Raw decoding parameters:
Output mode ............... cfa
Auto crop ................. enabled
Wavelet noise threshold ... 0
White balancing ........... disabled
Black point correction .... disabled
Highlights clipping ....... disabled
Auto rotate ............... disabled
Output image .............. w=5202 h=3465 n=1 Gray
Reading RAW data: done
addentum: This occurs for all RAW files, older or newer ones. Canon 600D.
Thank you,
Jürgen