Filippo Argiolas 49df4dca3c [440/906] sobel: implement sobel filter using separable kernels ... Reimplement sobel in a multipass fully separated convolution: - calculate x gradient map convolving first horizontally with blurring kernel and then vertically with differentiating kernel - calculate y gradient map convolving first vertically with blurring kernel and then horizonally with differentiating kernel - calculate length of the gradient vector Particular care was needed with normalization of the blurring kernel and with grey level offset of the differentiating one to prevent overflow of rgb values from the [0.0,1.0] range in intermediate passes. Now works on i915.		2014-03-15 18:36:40 +01:00
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GNUmakefile.gnustep	[412/906] Cocoa backend: improve support on GNUStep	2014-03-15 18:36:38 +01:00
gstgleffectbulge.c
gstgleffectfisheye.c
gstgleffectglow.c	[423/906] convolution: generate gaussian kernel on the fly	2014-03-15 18:36:39 +01:00
gstgleffectidentity.c
gstgleffectlumatocurve.c
gstgleffectlumatocurve.h
gstgleffectmirror.c
gstgleffectrgbtocurve.c
gstgleffectscurves.h
gstgleffectsin.c
gstgleffectsquare.c
gstgleffectsqueeze.c
gstgleffectssources.c	[440/906] sobel: implement sobel filter using separable kernels	2014-03-15 18:36:40 +01:00
gstgleffectssources.h	[440/906] sobel: implement sobel filter using separable kernels	2014-03-15 18:36:40 +01:00
gstgleffectstretch.c
gstgleffecttunnel.c
gstgleffecttwirl.c
gstgleffectxray.c	[423/906] convolution: generate gaussian kernel on the fly	2014-03-15 18:36:39 +01:00