41 lines
1.1 KiB
Plaintext
41 lines
1.1 KiB
Plaintext
GifRotat
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Program to rotate a gif image by an arbitrary angle.
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Usage:
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------
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Usage: GifRotat -a Angle [-q] [-s Width Height] [-h] GifFile
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If no GifFile is given, GifRotat will try to read stdin for GIF file.
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Memory required:
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----------------
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Screen (of source image).
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Options:
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--------
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1. -a Angle : Specifies the angle to rotate in degrees with respect to
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the X (horizontal) axis.
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2. [-q] : quite mode. Default off on MSDOS, on on unix. Controls printout
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of running scan lines. Use -q- to turn off.2
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3. [-s Width Height] : Since rotated image will have the same image size as
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original, some parts of the image will by clipped out and lost. By
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specifing a (bigger) size explicitly using the '-s' option, these parts
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may be saved.
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3. [-h] : print one command line help, similar to Usage above.
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Notes:
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------
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Image is rotated around its center. No filtering is performed on the output
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which have identical color map as the input. This is mainly since filtering
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will require color quantization which is very memory/time intensive and
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out of MSDOS memory limits even for small images.
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