TIFF images with TIFFTAG_ORIENTATION not displayed correctly
Posted: Thu Mar 29, 2007 11:50 am
In the TIFF tags of a TIFF image the TIFFTAG_ORIENTATION is used to specify the visual orientation of the data. See http://www.awaresystems.be/imaging/tiff ... ation.html
I have noticed that case 5-8 get displayed incorrectly by XnView 1.90.2
Case 5 = The 0th row represents the visual left-hand side of the image, and the 0th column represents the visual top.
XnView result : 90 degrees rotated clockwise and horizontally mirrored
Case 6 = The 0th row represents the visual right-hand side of the image, and the 0th column represents the visual top.
XnView result : 90 degrees rotated counter clockwise
Case 7 = The 0th row represents the visual right-hand side of the image, and the 0th column represents the visual bottom.
XnView result : 90 degrees rotated counter clockwise and horizontally mirrored
Case 8 = The 0th row represents the visual left-hand side of the image, and the 0th column represents the visual bottom.
XnView result : 90 degrees rotated clockwise
Case 1-4 are displayed as they should.
Is this fixable?
Thanks for a great program!
J.
I have noticed that case 5-8 get displayed incorrectly by XnView 1.90.2
Case 5 = The 0th row represents the visual left-hand side of the image, and the 0th column represents the visual top.
XnView result : 90 degrees rotated clockwise and horizontally mirrored
Case 6 = The 0th row represents the visual right-hand side of the image, and the 0th column represents the visual top.
XnView result : 90 degrees rotated counter clockwise
Case 7 = The 0th row represents the visual right-hand side of the image, and the 0th column represents the visual bottom.
XnView result : 90 degrees rotated counter clockwise and horizontally mirrored
Case 8 = The 0th row represents the visual left-hand side of the image, and the 0th column represents the visual bottom.
XnView result : 90 degrees rotated clockwise
Case 1-4 are displayed as they should.
Is this fixable?
Thanks for a great program!
J.