/* Call im_sharpen via arg vector. */ static int sharpen_vec( im_object *argv ) { int mask_size = *((int *) argv[2]); double x1 = *((double *) argv[3]); double x2 = *((double *) argv[4]); double x3 = *((double *) argv[5]); double m1 = *((double *) argv[6]); double m2 = *((double *) argv[7]); return( im_sharpen( argv[0], argv[1], mask_size, x1, x2, x3, m1, m2 ) ); }
VALUE img_sharpen(VALUE obj, VALUE mask_size, VALUE x1, VALUE y2, VALUE y3, VALUE m1, VALUE m2) { GetImg(obj, data, im); OutImg(obj, new, data_new, im_new); if (im_sharpen(im, im_new, NUM2INT(mask_size), NUM2DBL(x1), NUM2DBL(y2), NUM2DBL(y3), NUM2DBL(m1), NUM2DBL(m2))) vips_lib_error(); return new; }
/* The main part of the benchmark ... transform labq to labq. Chain several of * these together to get a CPU-bound operation. */ static int benchmark( IMAGE *in, IMAGE *out ) { IMAGE *t[18]; double one[3] = { 1.0, 1.0, 1.0 }; double zero[3] = { 0.0, 0.0, 0.0 }; double darken[3] = { 1.0 / 1.18, 1.0, 1.0 }; double whitepoint[3] = { 1.06, 1.0, 1.01 }; double shadow[3] = { -2, 0, 0 }; double white[3] = { 100, 0, 0 }; DOUBLEMASK *d652d50 = im_create_dmaskv( "d652d50", 3, 3, 1.13529, -0.0604663, -0.0606321, 0.0975399, 0.935024, -0.0256156, -0.0336428, 0.0414702, 0.994135 ); im_add_close_callback( out, (im_callback_fn) im_free_dmask, d652d50, NULL ); return( /* Set of descriptors for this operation. */ im_open_local_array( out, t, 18, "im_benchmark", "p" ) || /* Unpack to float. */ im_LabQ2Lab( in, t[0] ) || /* Crop 100 pixels off all edges. */ im_extract_area( t[0], t[1], 100, 100, t[0]->Xsize - 200, t[0]->Ysize - 200 ) || /* Shrink by 10%, bilinear interp. */ im_affinei_all( t[1], t[2], vips_interpolate_bilinear_static(), 0.9, 0, 0, 0.9, 0, 0 ) || /* Find L ~= 100 areas (white surround). */ im_extract_band( t[2], t[3], 0 ) || im_moreconst( t[3], t[4], 99 ) || /* Adjust white point and shadows. */ im_lintra_vec( 3, darken, t[2], zero, t[5] ) || im_Lab2XYZ( t[5], t[6] ) || im_recomb( t[6], t[7], d652d50 ) || im_lintra_vec( 3, whitepoint, t[7], zero, t[8] ) || im_lintra( 1.5, t[8], 0.0, t[9] ) || im_XYZ2Lab( t[9], t[10] ) || im_lintra_vec( 3, one, t[10], shadow, t[11] ) || /* Make a solid white image. */ im_black( t[12], t[4]->Xsize, t[4]->Ysize, 3 ) || im_lintra_vec( 3, zero, t[12], white, t[13] ) || /* Reattach border. */ im_ifthenelse( t[4], t[13], t[11], t[14] ) || /* Sharpen. */ im_Lab2LabQ( t[14], t[15] ) || im_sharpen( t[15], out, 11, 2.5, 40, 20, 0.5, 1.5 ) ); }