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My camera has an auto rotation feature that PS CS can sense. If the image is a vertical, it shows as a vertical in the browser.
However, the files are not rotated until one selects "apply rotation". When I use this feature, the files either get much bigger or smaller. For example, for a 1mb jpeg, the resulting rotated image could be 300kb, or 2mb. Apparently, there is a random jpeg compression setting happening each time. For example, if the camera jpeg setting was equivalent to 8 on PS, PS is now rotating it and jpegging it to around level 5 or 12. At 5, it’s discarding even more information, at 12, it’s recompressing it to a higher setting than the camera used, but it cannot gain additional info, so the size gets much larger without improving the quality.
Assuming PS cannot determine the jpeg compression level set by the camera, how can one set the closest setting used by the camera to get the maximum quality without adding too much to the size of the file? In other words, if the original file size is 1 mb, one can theoretically test resaving a copy of the file, and see what level of compression produces approximately the same size of file. But how does one set this in PS, as opposed to the program picking a random level?
I tried setting the level manually before doing rotations, and it doesn’t seem to pick up the last setting. Any method of setting this would be a great feature if one shoots hundreds or thousands of jpegs per shoot, and has to rotate them with minimal loss. Any ideas on how to do this, whether with auto rotation, or rotating several images at once in the file browser manually, would be appreciated.
Thanks in advance.
Stuart Dee
However, the files are not rotated until one selects "apply rotation". When I use this feature, the files either get much bigger or smaller. For example, for a 1mb jpeg, the resulting rotated image could be 300kb, or 2mb. Apparently, there is a random jpeg compression setting happening each time. For example, if the camera jpeg setting was equivalent to 8 on PS, PS is now rotating it and jpegging it to around level 5 or 12. At 5, it’s discarding even more information, at 12, it’s recompressing it to a higher setting than the camera used, but it cannot gain additional info, so the size gets much larger without improving the quality.
Assuming PS cannot determine the jpeg compression level set by the camera, how can one set the closest setting used by the camera to get the maximum quality without adding too much to the size of the file? In other words, if the original file size is 1 mb, one can theoretically test resaving a copy of the file, and see what level of compression produces approximately the same size of file. But how does one set this in PS, as opposed to the program picking a random level?
I tried setting the level manually before doing rotations, and it doesn’t seem to pick up the last setting. Any method of setting this would be a great feature if one shoots hundreds or thousands of jpegs per shoot, and has to rotate them with minimal loss. Any ideas on how to do this, whether with auto rotation, or rotating several images at once in the file browser manually, would be appreciated.
Thanks in advance.
Stuart Dee
MacBook Pro 16” Mockups 🔥
– in 4 materials (clay versions included)
– 12 scenes
– 48 MacBook Pro 16″ mockups
– 6000 x 4500 px