Exposes the edge-tracing vips_sobel() function.
I elected to not push the generated golden image from running the tests. If you want me to, please say so.
The image looks fine, but you probably want to run the tests yourself.
coverage: 73.207% (-0.07%) from 73.277%
when pulling 3be9fa26c3c8371a5e47b050a6c9fa890a5a4ac1 on linkdata:master
into e348555c2ce9d5d37997afb638820a12b103cbe4 on davidbyttow:master.
Exposes the edge-tracing vips_sobel() function. I elected to not push the generated golden image from running the tests. If you want me to, please say so. The image looks fine, but you probably want to run the tests yourself.