VIPS operation API by section (no gtkdoc comments yet)

conversion — convert images in some way: change band format, change header, insert, extract, join
convolution — convolve and correlate images
VipsFormat — load and save in a variety of formats
morphology — morphological operators, rank filters and related image analysis
resample — shrink, expand, rotate with a choice of interpolators
histograms_lut — find, manipulate and apply histograms and lookup tables
freq_filt — fourier transforms and frequency-domin filters
mask — load, save and process mask (matrix) objects
inplace — in-place paintbox operations: flood, paste, line, circle
mosaicing — build image mosaics
other — miscellaneous operators
video — various video grabbers
cimg_funcs — expose operations from the CImg library, mostly noise removal
VipsInterpolate — various interpolators: nearest, bilinear, bicubic, and some non-linear