void GUI::apply_filter_from_menu(Controller &controller, Gtk::ImageMenuItem &imagemenuitem) {
if ( ! controller.image_file_loaded ) { return ; }
bool is_alpha = controller.current_image_to_process.channels() == 4 ;
Sharpen sharpen_filter(3, "diamond") ;
Sharpen sharpen_filter_more(3, "diamond") ;
Find_Edges find_edges_filter(3) ;
Mean mean_filter(3) ;
Mean mean_filter_more(5) ;
cv::Mat kernel = make_kernel("rect", 3) ;
cv::Mat tmp = controller.current_image_to_process.clone() ;
cv::Mat frame ;
switch ( stoi(imagemenuitem.get_name()) ) {
case 0 :
// Pencil Sketch filter.
pencil_sketch_filter(tmp, frame) ;
break ;
case 1 :
// Stylisation filter.
stylisation_filter(tmp, frame) ;
break ;
case 2 :
// Detail Enhance filter.
detail_enhance_filter(tmp, frame) ;
break ;
case 3 :
// Edge Preserving filter.
edge_preserving_filter(tmp, frame) ;
break ;
case 4 :
// Stroke edges filter:
stroke_edges(tmp, frame) ;
break ;
case 5 :
// Invert Intensity filter:
invert_intensity(tmp, frame) ;
break ;
case 6 :
// Light Intensity filter:
effect_light(tmp, frame) ;
break ;
case 7 :
// Recolor-RC (Red-Cyan) filter:
recolorRC(tmp, frame) ;
break ;
case 8 :
// Recolor-RC (Red-Green-Value) filter:
recolorRGV(tmp, frame) ;
break ;
case 9 :
// Recolor-RC (Cyan-Magenta-Value) filter:
recolorCMV(tmp, frame) ;
break ;
case 10 :
// Extrema Maximal Filter:
extrema(tmp, frame, "max") ;
break ;
case 11 :
// Extrema Minimal Filter:
extrema(tmp, frame, "min") ;
break ;
case 12 :
// Sharpen filter:
sharpen_filter.apply(tmp, frame) ;
break ;
case 13 :
// Sharpen More filter:
sharpen_filter_more.apply(tmp, frame) ;
break ;
case 14 :
// Find Edges filter:
if (is_alpha) {
cv::Mat frame_rgb ;
cv::Mat tmp_1 ;
cvtColor(tmp, frame_rgb, cv::COLOR_BGRA2BGR) ;
find_edges_filter.apply(frame_rgb, tmp_1) ;
vector<cv::Mat> tmp_2 ;
vector<cv::Mat> tmp_3 ;
cv::split(tmp, tmp_2) ;
cv::split(tmp_1, tmp_3) ;
// Assign BGR channels.
tmp_2[0] = tmp_3[0] ;
tmp_2[1] = tmp_3[1] ;
tmp_2[2] = tmp_3[2] ;
// Final channels merging into result with alpha channel unchanged.
cv::merge(tmp_2, frame) ;
break ;
}
find_edges_filter.apply(tmp, frame) ;
break ;
case 15 :
// Mean Blur filter:
mean_filter.apply(tmp, frame) ;
break ;
case 16 :
// Mean Blur More filter:
mean_filter_more.apply(tmp, frame) ;
break ;
case 17 :
// Blur filter:
blur_filter(tmp, frame) ;
break ;
case 18 :
// Median Blur filter:
median_blur_filter(tmp, frame) ;
break ;
case 19 :
// Gaussian Blur filter:
gaussian_blur_filter(tmp, frame) ;
break ;
case 20 :
denoising_filter(tmp, frame) ;
break ;
case 21 :
// Erode filter:
erode_filter(tmp, frame, kernel, 1) ;
break ;
case 22 :
// Dilate filter:
dilate_filter(tmp, frame, kernel, 1) ;
break ;
case 23 :
// Wave Horizontally filter:
wave(tmp, frame, -1) ;
break ;
case 24 :
// Wave Vertically filter:
wave(tmp, frame, 1) ;
break ;
case 25 :
// Wave Twice (Horizontally and Vertically) filter:
wave(tmp, frame, 0) ;
break ;
case 26 :
// Contours Sobel White filter.
sobel_drawning(tmp, frame, 3, false, 1) ;
break ;
case 27 :
// Contours Sobel Black filter.
sobel_drawning(tmp, frame, 3, false, -1) ;
break ;
case 28 :
// Contours Sobel Emboss filter.
sobel_drawning(tmp, frame, 3, false, 0) ;
break ;
case 29 :
// Emboss Sobel filter:
sobel_emboss(tmp, frame, 3) ;
break ;
case 30 :
// Emboss Laplacian filter:
laplacian_emboss(tmp, frame, 3) ;
break ;
case 31 :
// Binary White OTSU filter:
// Build a binary image (a black and white only image) with white background (@arg value true)
// based on the OTSU threshold computing algorithm (@arg value -1).
build_binary_image(tmp, frame, -1, true) ;
break ;
case 32 :
// Binary White TRIANGLE filter:
// Build a binary image (a black and white only image) with white background (@arg value true)
// based on the TRIANGLE threshold computing algorithm (@arg value 1).
build_binary_image(tmp, frame, 1, true) ;
break ;
case 33 :
// Binary White AVERAGE filter:
// Build a binary image (a black and white only image) with white background (@arg value true)
// based on the AVERAGE threshold from OTSU and TRIANGLE (@arg value 0).
build_binary_image(tmp, frame, 0, true) ;
break ;
case 34 :
// Binary Black OTSU filter:
// Build a binary image (a black and white only image) with black background (@arg value true)
// based on the OTSU threshold computing algorithm (@arg value -1).
build_binary_image(tmp, frame, -1, false) ;
break ;
case 35 :
// Binary Black TRIANGLE filter:
// Build a binary image (a black and white only image) with black background (@arg value true)
// based on the TRIANGLE threshold computing algorithm (@arg value 1).
build_binary_image(tmp, frame, 1, false) ;
break ;
case 36 :
// Binary Black AVERAGE filter:
// Build a binary image (a black and white only image) with black background (@arg value true)
// based on the AVERAGE threshold from OTSU and TRIANGLE (@arg value 0).
build_binary_image(tmp, frame, 0, false) ;
break ;
case 37 :
// Binary Contours White filter:
// Build a binary image (a black and white only image) with contours detction on white background (@arg value false).
laplacian_zero_crossing(tmp, frame, 19, false) ;
break ;
case 38 :
// Binary Contours Black filter:
// Build a binary image (a black and white only image) with contours detction on black background (@arg value true).
laplacian_zero_crossing(tmp, frame, 19, true) ;
break ;
#ifdef DEBUG
default :
// Cannot append due of the GUI interfacing.
fprintf(stdout,"Error applying filter !!!\n") ;
return ;
#endif
}
// We register current frame in vector<cv::Mat> for undo-redo.
controller.process_after_applying(frame) ;
// It convert current_image_to_process as src to RGB(A) in dst current_image_to_display.
set_img(frame, controller.current_image_to_display, controller) ; // It auto process conversion to RGB(A).
// Reset some variables.
after_applying_reset_settings(controller) ;
}
static int
shrink_factor( IMAGE *in, IMAGE *out,
int shrink, double residual, VipsInterpolate *interp )
{
IMAGE *t[9];
VipsImage **s = (VipsImage **)
vips_object_local_array( VIPS_OBJECT( out ), 1 );
IMAGE *x;
int tile_width;
int tile_height;
int nlines;
if( im_open_local_array( out, t, 9, "thumbnail", "p" ) )
return( -1 );
x = in;
/* Unpack the two coded formats we support to float for processing.
*/
if( x->Coding == IM_CODING_LABQ ) {
if( verbose )
printf( "unpacking LAB to RGB\n" );
if( im_LabQ2disp( x, t[1], im_col_displays( 7 ) ) )
return( -1 );
x = t[1];
}
else if( x->Coding == IM_CODING_RAD ) {
if( verbose )
printf( "unpacking Rad to float\n" );
if( im_rad2float( x, t[1] ) )
return( -1 );
x = t[1];
}
if( im_shrink( x, t[2], shrink, shrink ) )
return( -1 );
/* We want to make sure we read the image sequentially.
* However, the convolution we may be doing later will force us
* into SMALLTILE or maybe FATSTRIP mode and that will break
* sequentiality.
*
* So ... read into a cache where tiles are scanlines, and make sure
* we keep enough scanlines to be able to serve a line of tiles.
*/
vips_get_tile_size( t[2],
&tile_width, &tile_height, &nlines );
if( vips_tilecache( t[2], &s[0],
"tile_width", t[2]->Xsize,
"tile_height", 10,
"max_tiles", (nlines * 2) / 10,
"strategy", VIPS_CACHE_SEQUENTIAL,
NULL ) ||
im_affinei_all( s[0], t[4],
interp, residual, 0, 0, residual, 0, 0 ) )
return( -1 );
x = t[4];
/* If we are upsampling, don't sharpen, since nearest looks dumb
* sharpened.
*/
if( shrink > 1 && residual <= 1.0 && !nosharpen ) {
if( verbose )
printf( "sharpening thumbnail\n" );
if( im_conv( x, t[5], sharpen_filter() ) )
return( -1 );
x = t[5];
}
/* Colour management: we can transform the image if we have an output
* profile and an input profile. The input profile can be in the
* image, or if there is no profile there, supplied by the user.
*/
if( export_profile &&
(im_header_get_typeof( x, IM_META_ICC_NAME ) ||
import_profile) ) {
if( im_header_get_typeof( x, IM_META_ICC_NAME ) ) {
if( verbose )
printf( "importing with embedded profile\n" );
if( im_icc_import_embedded( x, t[6],
IM_INTENT_RELATIVE_COLORIMETRIC ) )
return( -1 );
}
else {
if( verbose )
printf( "importing with profile %s\n",
import_profile );
if( im_icc_import( x, t[6],
import_profile,
IM_INTENT_RELATIVE_COLORIMETRIC ) )
return( -1 );
}
if( verbose )
printf( "exporting with profile %s\n", export_profile );
if( im_icc_export_depth( t[6], t[7],
8, export_profile,
IM_INTENT_RELATIVE_COLORIMETRIC ) )
return( -1 );
x = t[7];
}
if( delete_profile ) {
if( verbose )
printf( "deleting profile from output image\n" );
if( im_meta_get_typeof( x, IM_META_ICC_NAME ) &&
!im_meta_remove( x, IM_META_ICC_NAME ) )
return( -1 );
}
if( im_copy( x, out ) )
return( -1 );
return( 0 );
}
