Have images coming in from digital cameras which need to be rotated. They have EXIF Orientation capability, and when executing the lossless rotation via Auto Rotate, nothing happens, except for the fact that the orientation flag is set to Top Left.
Also (don't know if this is related or not - but I suspect it is) when specifying something other than Auto Rotate, it will often rotate the image 90 degrees more than what was desired, necessitating having to rotate the image back by 90 degrees. However, if Auto Rotate was initially performed (resulting in no apparent action), and then rotating it via one of the other options other than auto, it does work the "1st" time.
BEFORE ROTATION:
Make - Panasonic
Model - DMC-FX55
Orientation - Left bottom
XResolution - 72
YResolution - 72
ResolutionUnit - Inch
Software - Ver.1.0
DateTime - 2007:12:25 20:18:54
YCbCrPositioning - Co-Sited
ExifOffset - 496
ExposureTime - 1/30 seconds
FNumber - 2.80
ExposureProgram - Normal program
ISOSpeedRatings - 100
ExifVersion - 0221
DateTimeOriginal - 2007:12:25 20:18:54
DateTimeDigitized - 2007:12:25 20:18:54
ComponentsConfiguration - YCbCr
CompressedBitsPerPixel - 4 (bits/pixel)
ExposureBiasValue - 0.00
MaxApertureValue - F 2.83
MeteringMode - Multi-segment
LightSource - Flash
Flash - Flash fired, auto mode, red-eye reduction mode
FocalLength - 4.60 mm
FlashPixVersion - 0100
ColorSpace - sRGB
ExifImageWidth - 2448
ExifImageHeight - 3264
InteroperabilityOffset - 7828
SensingMethod - One-chip color area sensor
FileSource - DSC - Digital still camera
SceneType - A directly photographed image
CustomRendered - Normal process
ExposureMode - Auto
White Balance - Auto
DigitalZoomRatio - 0.00 x
FocalLengthIn35mmFilm - 28 mm
SceneCaptureType - Portrait
GainControl - None
Contrast - Normal
Saturation - Normal
Sharpness - Normal
Maker Note (Vendor): -
Thumbnail: -
Compression - 6 (JPG)
Orientation - Left bottom
XResolution - 72
YResolution - 72
ResolutionUnit - Inch
JpegIFOffset - 8084
JpegIFByteCount - 7237
YCbCrPositioning - Co-Sited
AFTER THE ROTATION (with no visible effects):
Make - Panasonic
Model - DMC-FX55
Orientation - Top left
XResolution - 72
YResolution - 72
ResolutionUnit - Inch
Software - Ver.1.0
DateTime - 2007:12:25 20:18:54
YCbCrPositioning - Co-Sited
ExifOffset - 496
ExposureTime - 1/30 seconds
FNumber - 2.80
ExposureProgram - Normal program
ISOSpeedRatings - 100
ExifVersion - 0221
DateTimeOriginal - 2007:12:25 20:18:54
DateTimeDigitized - 2007:12:25 20:18:54
ComponentsConfiguration - YCbCr
CompressedBitsPerPixel - 4 (bits/pixel)
ExposureBiasValue - 0.00
MaxApertureValue - F 2.83
MeteringMode - Multi-segment
LightSource - Flash
Flash - Flash fired, auto mode, red-eye reduction mode
FocalLength - 4.60 mm
FlashPixVersion - 0100
ColorSpace - sRGB
ExifImageWidth - 3264
ExifImageHeight - 2448
InteroperabilityOffset - 7828
SensingMethod - One-chip color area sensor
FileSource - DSC - Digital still camera
SceneType - A directly photographed image
CustomRendered - Normal process
ExposureMode - Auto
White Balance - Auto
DigitalZoomRatio - 0.00 x
FocalLengthIn35mmFilm - 28 mm
SceneCaptureType - Portrait
GainControl - None
Contrast - Normal
Saturation - Normal
Sharpness - Normal
Maker Note (Vendor): -
Thumbnail: -
Compression - 6 (JPG)
Orientation - Left bottom
XResolution - 72
YResolution - 72
ResolutionUnit - Inch
JpegIFOffset - 8084
JpegIFByteCount - 7237
YCbCrPositioning - Co-Sited
Also (don't know if this is related or not - but I suspect it is) when specifying something other than Auto Rotate, it will often rotate the image 90 degrees more than what was desired, necessitating having to rotate the image back by 90 degrees. However, if Auto Rotate was initially performed (resulting in no apparent action), and then rotating it via one of the other options other than auto, it does work the "1st" time.
BEFORE ROTATION:
Make - Panasonic
Model - DMC-FX55
Orientation - Left bottom
XResolution - 72
YResolution - 72
ResolutionUnit - Inch
Software - Ver.1.0
DateTime - 2007:12:25 20:18:54
YCbCrPositioning - Co-Sited
ExifOffset - 496
ExposureTime - 1/30 seconds
FNumber - 2.80
ExposureProgram - Normal program
ISOSpeedRatings - 100
ExifVersion - 0221
DateTimeOriginal - 2007:12:25 20:18:54
DateTimeDigitized - 2007:12:25 20:18:54
ComponentsConfiguration - YCbCr
CompressedBitsPerPixel - 4 (bits/pixel)
ExposureBiasValue - 0.00
MaxApertureValue - F 2.83
MeteringMode - Multi-segment
LightSource - Flash
Flash - Flash fired, auto mode, red-eye reduction mode
FocalLength - 4.60 mm
FlashPixVersion - 0100
ColorSpace - sRGB
ExifImageWidth - 2448
ExifImageHeight - 3264
InteroperabilityOffset - 7828
SensingMethod - One-chip color area sensor
FileSource - DSC - Digital still camera
SceneType - A directly photographed image
CustomRendered - Normal process
ExposureMode - Auto
White Balance - Auto
DigitalZoomRatio - 0.00 x
FocalLengthIn35mmFilm - 28 mm
SceneCaptureType - Portrait
GainControl - None
Contrast - Normal
Saturation - Normal
Sharpness - Normal
Maker Note (Vendor): -
Thumbnail: -
Compression - 6 (JPG)
Orientation - Left bottom
XResolution - 72
YResolution - 72
ResolutionUnit - Inch
JpegIFOffset - 8084
JpegIFByteCount - 7237
YCbCrPositioning - Co-Sited
AFTER THE ROTATION (with no visible effects):
Make - Panasonic
Model - DMC-FX55
Orientation - Top left
XResolution - 72
YResolution - 72
ResolutionUnit - Inch
Software - Ver.1.0
DateTime - 2007:12:25 20:18:54
YCbCrPositioning - Co-Sited
ExifOffset - 496
ExposureTime - 1/30 seconds
FNumber - 2.80
ExposureProgram - Normal program
ISOSpeedRatings - 100
ExifVersion - 0221
DateTimeOriginal - 2007:12:25 20:18:54
DateTimeDigitized - 2007:12:25 20:18:54
ComponentsConfiguration - YCbCr
CompressedBitsPerPixel - 4 (bits/pixel)
ExposureBiasValue - 0.00
MaxApertureValue - F 2.83
MeteringMode - Multi-segment
LightSource - Flash
Flash - Flash fired, auto mode, red-eye reduction mode
FocalLength - 4.60 mm
FlashPixVersion - 0100
ColorSpace - sRGB
ExifImageWidth - 3264
ExifImageHeight - 2448
InteroperabilityOffset - 7828
SensingMethod - One-chip color area sensor
FileSource - DSC - Digital still camera
SceneType - A directly photographed image
CustomRendered - Normal process
ExposureMode - Auto
White Balance - Auto
DigitalZoomRatio - 0.00 x
FocalLengthIn35mmFilm - 28 mm
SceneCaptureType - Portrait
GainControl - None
Contrast - Normal
Saturation - Normal
Sharpness - Normal
Maker Note (Vendor): -
Thumbnail: -
Compression - 6 (JPG)
Orientation - Left bottom
XResolution - 72
YResolution - 72
ResolutionUnit - Inch
JpegIFOffset - 8084
JpegIFByteCount - 7237
YCbCrPositioning - Co-Sited
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