The quality() function is an inbuilt function in the GraphicsMagick library which is used to JPEG/MIFF/PNG/TIFF compression level. If filter-type is 4 or less, the specified filter-type is used for all scanlines:0: none, 1: sub, 2: up, 3: average, 4: Paeth. The function returns the true value on success.
quality( level )
Parameters: This function accepts single parameter which is mentioned above and defined below:
- level: This parameter is used to specify the level of the quality.
Return Value: This function returns the GraphicsMagick object.
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