Strip height affects performance and memory usage. The strip height parameter controls how many rows of the input image are processed at one time. Lowering this parameter may reduce memory usage, but may increase the encoding time. Raising this parameter may increase memory usage, but may also decrease encoding time. Unlike the block size, changing this parameter will not have any effect on the compression ratio of the output image.
Typical values range from 2 to 128. The encoder may perform more efficiently if the block size is a multiple of the strip height.
Acceptable values: even integers between 2 and source image height
Default: 64