Green lines/bands in Portrait images

[weirdo@…]

Cinelerra 2.1CV (C) 2006 Heroine Virtual Ltd.
Compiled on ven apr 18 02:54:47 UTC 2008

This problem has haunted me for a long time now. Basically, if I load images off a camera, and they are portrait (i.e. taken with the camera sideways), when I load them into Cinelerra, I get green bands or green lines across the image. Opening in Gimp, and changing things and resaving doesn't seem to help. It's not just in the display, as rendering the video shows the lines too.

Reproducible: Always

Steps to Reproduce:
1.Load a portrait JPG (Both off a Minolta DSLR and my Canon Compact)
2.
3.

Actual Results:
Green bands/lines across image

Expected Results:
Image should display without the green lines

[weirdo@…]

Screenshot of image with green bands

[johannes.sixt@…]

Interesting. I see it with my own JPGs, too. Regardless of whether the
orientation is coded in EXIF or whether the JPG data itself is portrait.

[weirdo@…]

(In reply to comment #2)

Interesting. I see it with my own JPGs, too. Regardless of whether the
orientation is coded in EXIF or whether the JPG data itself is portrait.

I'm glad it's not just my photos!! I've read similar bug reports that seem to be related to MJPEG, but I don't think this is related.

The only other thing I could think of is that something is encoded differently in the fields when taken as portrait. I should actually try rotating a normal photo and see if it has the same problem... A task for the morning, its sleepy time here.

Tim

[ahz001@…]

I also see the horizontal green window blinds on cinelerra-2.1-0.14.20080214.fc9.i386 . It has something to do with dimensions, such as the ratio of width to height.

no green lines: 1280x1024, 3264x2448
green lines: 360x480, 2233x1678

[manfred@…]

I can reproducible work around this bug with all my images. When I have a portrait image and I open it in Gimp it asks me to if i want to rotate it. If I agree, it will rotate the image and the following import in Cinelerra will display the green lines. However if I decline the rotation and open the image and then rotate it as an image manipulation within Gimp the image it will be rotated fine and show without green lines.

I suspect has to do with the different operation including the EXIF info or some other manipulation happening differently, but have not checked.