sample-factor
Posted: 2016-10-25T09:13:41-07:00
a) Is there function in Magick++ to apply desired chroma subsampling factor (like the command line "-sampling-factor")?
b) Further, I understand that by default, when writing jpeg images, 4:2:0 subsampling will be applied by default up to quality factor 90; above 90, no subsampling will occur by default. Assuming a) above can be achieved, is there a way to force 4:2:0 subsampling on images written with quality factor greater than 90?
Thanks!
b) Further, I understand that by default, when writing jpeg images, 4:2:0 subsampling will be applied by default up to quality factor 90; above 90, no subsampling will occur by default. Assuming a) above can be achieved, is there a way to force 4:2:0 subsampling on images written with quality factor greater than 90?
Thanks!