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Unwanted Conversion of B&W PNG as Grayscale
Posted: Sun May 14, 2006 3:11 pm
by brahman
Hi,
thank you for this wonderful program! I have tried it a few years ago but now it has really grown up and will replace Irfan for me. Congratulations to the author!
Question:
When I deskew a B&W PNG image and then save the changes, it is always saved as grayscale.
I would not like this conversion to be done without my permission. Is there a way to deskew and save as B&W.
Thank you,
Brahman
Re: Unwanted Conversion of B&W PNG as Grayscale
Posted: Mon May 15, 2006 6:33 am
by xnview
brahman wrote:Hi,
thank you for this wonderful program! I have tried it a few years ago but now it has really grown up and will replace Irfan for me. Congratulations to the author!
Question:
When I deskew a B&W PNG image and then save the changes, it is always saved as grayscale.
I would not like this conversion to be done without my permission. Is there a way to deskew and save as B&W.
Because i make a smooth rotation to have a good result!
Posted: Mon May 15, 2006 7:25 pm
by helmut
When rotating, aliasing is an issue unless the angle is a multiple of 90 degrees. To avoid aliasing, XnView uses
anti-aliasing which works in grey scale mode, only.
Posted: Tue May 16, 2006 11:36 am
by Drahken
You can always go image->convert to binary->no dither after you rotate & before you save, in order to return it to a b&w image.
Posted: Tue May 16, 2006 12:44 pm
by brahman
Drahken wrote:You can always go image->convert to binary->no dither after you rotate & before you save, in order to return it to a b&w image.
Thank you Drahken. Your answer was very helpful.
Now I do not need to use Imagine any more and can take advantage of the beautiful free rotate and deskew functions of XNView.
Thanks for the help.
Brahman