/* 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 ) ); }
/* Call im_Lab2XYZ() via arg vector. */ static int Lab2XYZ_vec( im_object *argv ) { return( im_Lab2XYZ( argv[0], argv[1] ) ); }
/* Convert to a saveable format. * * im__saveable_t gives the general type of image * we make: vanilla 1/3 bands (eg. PPM), with an optional alpha (eg. PNG), or * with CMYK as an option (eg. JPEG). * * format_table[] says how to convert each input format. * * Need to im_close() the result IMAGE. */ IMAGE * im__convert_saveable( IMAGE *in, im__saveable_t saveable, int format_table[10] ) { IMAGE *out; if( !(out = im_open( "convert-for-save", "p" )) ) return( NULL ); /* If this is an IM_CODING_LABQ, we can go straight to RGB. */ if( in->Coding == IM_CODING_LABQ ) { IMAGE *t = im_open_local( out, "conv:1", "p" ); static void *table = NULL; /* Make sure fast LabQ2disp tables are built. 7 is sRGB. */ if( !table ) table = im_LabQ2disp_build_table( NULL, im_col_displays( 7 ) ); if( !t || im_LabQ2disp_table( in, t, table ) ) { im_close( out ); return( NULL ); } in = t; } /* If this is an IM_CODING_RAD, we go to float RGB or XYZ. We should * probably un-gamma-correct the RGB :( */ if( in->Coding == IM_CODING_RAD ) { IMAGE *t; if( !(t = im_open_local( out, "conv:1", "p" )) || im_rad2float( in, t ) ) { im_close( out ); return( NULL ); } in = t; } /* Get the bands right. */ if( in->Coding == IM_CODING_NONE ) { if( in->Bands == 2 && saveable != IM__RGBA ) { IMAGE *t = im_open_local( out, "conv:1", "p" ); if( !t || im_extract_band( in, t, 0 ) ) { im_close( out ); return( NULL ); } in = t; } else if( in->Bands > 3 && saveable == IM__RGB ) { IMAGE *t = im_open_local( out, "conv:1", "p" ); if( !t || im_extract_bands( in, t, 0, 3 ) ) { im_close( out ); return( NULL ); } in = t; } else if( in->Bands > 4 && (saveable == IM__RGB_CMYK || saveable == IM__RGBA) ) { IMAGE *t = im_open_local( out, "conv:1", "p" ); if( !t || im_extract_bands( in, t, 0, 4 ) ) { im_close( out ); return( NULL ); } in = t; } /* Else we have saveable IM__ANY and we don't chop bands down. */ } /* Interpret the Type field for colorimetric images. */ if( in->Bands == 3 && in->BandFmt == IM_BANDFMT_SHORT && in->Type == IM_TYPE_LABS ) { IMAGE *t = im_open_local( out, "conv:1", "p" ); if( !t || im_LabS2LabQ( in, t ) ) { im_close( out ); return( NULL ); } in = t; } if( in->Coding == IM_CODING_LABQ ) { IMAGE *t = im_open_local( out, "conv:1", "p" ); if( !t || im_LabQ2Lab( in, t ) ) { im_close( out ); return( NULL ); } in = t; } if( in->Coding != IM_CODING_NONE ) { im_close( out ); return( NULL ); } if( in->Bands == 3 && in->Type == IM_TYPE_LCH ) { IMAGE *t[2]; if( im_open_local_array( out, t, 2, "conv-1", "p" ) || im_clip2fmt( in, t[0], IM_BANDFMT_FLOAT ) || im_LCh2Lab( t[0], t[1] ) ) { im_close( out ); return( NULL ); } in = t[1]; } if( in->Bands == 3 && in->Type == IM_TYPE_YXY ) { IMAGE *t[2]; if( im_open_local_array( out, t, 2, "conv-1", "p" ) || im_clip2fmt( in, t[0], IM_BANDFMT_FLOAT ) || im_Yxy2XYZ( t[0], t[1] ) ) { im_close( out ); return( NULL ); } in = t[1]; } if( in->Bands == 3 && in->Type == IM_TYPE_UCS ) { IMAGE *t[2]; if( im_open_local_array( out, t, 2, "conv-1", "p" ) || im_clip2fmt( in, t[0], IM_BANDFMT_FLOAT ) || im_UCS2XYZ( t[0], t[1] ) ) { im_close( out ); return( NULL ); } in = t[1]; } if( in->Bands == 3 && in->Type == IM_TYPE_LAB ) { IMAGE *t[2]; if( im_open_local_array( out, t, 2, "conv-1", "p" ) || im_clip2fmt( in, t[0], IM_BANDFMT_FLOAT ) || im_Lab2XYZ( t[0], t[1] ) ) { im_close( out ); return( NULL ); } in = t[1]; } if( in->Bands == 3 && in->Type == IM_TYPE_XYZ ) { IMAGE *t[2]; if( im_open_local_array( out, t, 2, "conv-1", "p" ) || im_clip2fmt( in, t[0], IM_BANDFMT_FLOAT ) || im_XYZ2disp( t[0], t[1], im_col_displays( 7 ) ) ) { im_close( out ); return( NULL ); } in = t[1]; } /* Cast to the output format. */ { IMAGE *t = im_open_local( out, "conv:1", "p" ); if( !t || im_clip2fmt( in, t, format_table[in->BandFmt] ) ) { im_close( out ); return( NULL ); } in = t; } if( im_copy( in, out ) ) { im_close( out ); return( NULL ); } return( out ); }