Batch Resize Images with SIPs – Crop and Scale
In this example I need to scale image down 50%.
Currently the height is 943 and not perfectly divisible.
Pixel fractions round up or down to a whole number, causing images to skew.
1. Batch crop just the height by 1px to 942 with sips --cropToHeightWidth
2. Batch resize width by 50% (height will scale to match ratio) with sips --resampleWidth