Lines Matching refs:filter
335 int gdImageConvolution(gdImagePtr src, float filter[3][3], float filter_div, float offset) in gdImageConvolution()
372 new_r += (float)gdImageRed(srcback, pxl) * filter[j][i]; in gdImageConvolution()
373 new_g += (float)gdImageGreen(srcback, pxl) * filter[j][i]; in gdImageConvolution()
374 new_b += (float)gdImageBlue(srcback, pxl) * filter[j][i]; in gdImageConvolution()
518 float filter[3][3] = {{-1.0,0.0,-1.0}, in gdImageEdgeDetectQuick() local
522 return gdImageConvolution(src, filter, 1, 127); in gdImageEdgeDetectQuick()
527 float filter[3][3] = {{1.0,2.0,1.0}, in gdImageGaussianBlur() local
531 return gdImageConvolution(im, filter, 16, 0); in gdImageGaussianBlur()
541 float filter[3][3] = {{ 1.5, 0.0, 0.0}, in gdImageEmboss() local
545 return gdImageConvolution(im, filter, 1, 127); in gdImageEmboss()
550 float filter[3][3] = {{-1.0,-1.0,-1.0}, in gdImageMeanRemoval() local
554 return gdImageConvolution(im, filter, 1, 0); in gdImageMeanRemoval()
559 float filter[3][3] = {{1.0,1.0,1.0}, in gdImageSmooth() local
563 filter[1][1] = weight; in gdImageSmooth()
565 return gdImageConvolution(im, filter, weight+8, 0); in gdImageSmooth()