#!/usr/bin/env python # # ============================================================================== # RangeSelection.py V4 - (c) Bert Hinz 2009 # ============================================================================== # # RANGE SELECTION FOR THE GIMP # # ============================================================================== # # This program is free software; you can redistribute it and/or modify it. # This program is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. # # ============================================================================== from gimpfu import * from string import * def RangeSelection(img, drw, area, width_of_range, border_l, border_r, channel, feathering, mask, mask_mode, ahc, hc): pdb.gimp_image_undo_group_start(img) ch={'R':0,'G':1,'B':2, 'S':1, 'V':2, "L": 0, "C":0, "M":1, "Y":2} if "RGB".find(channel)>-1: cmod="RGB" itype="RGB_IMAGE" elif "HSV".find(channel)>-1: cmod="HSV" itype="HSV_IMAGE" elif "CMY".find(channel)>-1: cmod="CMY" itype="CMY_IMAGE" elif "LAB".find(channel)>-1: cmod="LAB" itype="LAB_IMAGE" nr_base=pdb.gimp_image_get_layer_position(img,drw) # deletes former selections pdb.gimp_selection_none(img) # remembers initial background color bgc = gimp.get_background() ## pdb.gimp_message(channel+"\n"+cmod +"\n"+itype) # creates new layer for displaying selection DEC_img=pdb.plug_in_decompose(img, drw, cmod, 1)[0] width = drw.width height = drw.height layer_check = gimp.Layer(img, "check", width, height, RGB_IMAGE, 100, NORMAL_MODE) img.add_layer(layer_check, 0) pdb.gimp_edit_copy(DEC_img.layers[ch[channel]]) pdb.gimp_edit_paste(layer_check,0) pdb.gimp_floating_sel_anchor(img.layers[0]) layer_check.mode = NORMAL_MODE layer_check.opacity=50.0 drw=img.layers[0] pdb.gimp_image_delete(DEC_img) # calculates borders of range ('min' and 'max') if area=="highlights": min=255-255.0/100*width_of_range max=255 elif area=="shadows": min=0 max=255.0/100*width_of_range elif area=="midtones": min=127.5-(255.0/100*width_of_range/2.0) max=127.5+(255.0/100*width_of_range/2.0) else: min=border_l max=border_r if max"custom": if area=="highlights": LName=LName+" (" + str(width_of_range)+"% HL)" if area=="midtones": LName=LName+" (" + str(width_of_range)+"% MT)" if area=="shadows": LName=LName+" (" + str(width_of_range)+"% SH)" if feathering>0: LName=LName + " F"+str(int(feathering)) # creates copy of drawable if conversion to layer mask is activated if mask==True: drw=img.layers[nr_base+1] layer_copy = drw.copy(True) layer_copy.mode = NORMAL_MODE layer_copy.name = LName layer_copy.opacity=100.0 img.add_layer(layer_copy,-1) # creates selection layer_number=0 if mask==True: layer_number=layer_number+1 if min>0 and max==255: pdb.plug_in_exchange (img,img.layers[layer_number],255,255,255,255,255,255,255-min,255-min,255-min) pdb.gimp_by_color_select(img.layers[layer_number],(255,255,255), 0, 0, True, True, feathering, False) if max<255 and min==0: pdb.gimp_invert(img.layers[layer_number]) pdb.plug_in_exchange (img,img.layers[layer_number],255,255,255,255,255,255,max,max,max) pdb.gimp_by_color_select(img.layers[layer_number],(255,255,255), 0, 0, True, True, feathering, False) pdb.gimp_invert(img.layers[layer_number]) if max<255 and min>0: pdb.gimp_selection_none(img) THR=int(max-min)/2 AM=int(min+THR) CS=(AM,AM,AM) pdb.gimp_by_color_select(img.layers[layer_number],(AM,AM,AM), THR, 0, True, True, feathering, False) pdb.gimp_layer_add_alpha(img.layers[layer_number]) if max<255 and min==0: pdb.gimp_invert(img.layers[layer_number]) # erases unselected parts of the image pdb.gimp_selection_invert(img) pdb.plug_in_threshold_alpha(img,img.layers[layer_number],255) pdb.gimp_selection_invert(img) # highlights selection according chosen highlighting color gimp.set_background(hc) pdb.gimp_edit_fill(img.layers[layer_number],1) gimp.set_background(bgc) drw=layer_check # conversion to layer mask if mask==True: layer_masked = drw.copy(True) layer_masked.mode = NORMAL_MODE layer_masked.name = "masked" layer_masked.opacity=100.0 img.add_layer(layer_masked,-1) gimp.set_background(0,0,0) pdb.gimp_edit_fill(img.layers[0],1) pdb.gimp_edit_copy(layer_masked) mask = pdb.gimp_layer_create_mask(img.layers[2], ADD_WHITE_MASK) pdb.gimp_layer_add_mask(img.layers[1],mask) pdb.gimp_edit_paste(mask,0) drw=mask pdb.gimp_floating_sel_anchor(img.layers[0]) if mask_mode=="white on black": pdb.gimp_invert(mask) pdb.gimp_image_remove_layer(img,img.layers[0]) pdb.gimp_image_lower_layer(img,img.layers[0]) img.layers[0].name =LName pdb.gimp_image_set_active_layer(img,img.layers[0]) if ahc==False: pdb.gimp_image_remove_layer(img,img.layers[0]) pdb.gimp_image_undo_group_end(img) register( "python_range_selection", "", "You can set a percentage width of tonal range for highlights, midtones or shadows." + "\n"+"Alternatively you can define the left and the right border for a custom range."+"\n"+"Furthermore you can decide if the selection should be based on the values of the image or on one of the three color channels." + "\n"+"The created selection can be converted to a layer mask if desired." +"\n"+"After running the script there will be an adittional layer on top that highlights the selection. The name of this layer containes the chosen settings.", "Berthold Hinz", "public domain", "2009", "/Select/Tonal range", "RGB*", [(PF_RADIO, "area", ("Mode"), "highlights", (("Highlights [HL]", "highlights"),("Midtones [MT]", "midtones"),("Shadows [SH]", "shadows"),("Custom", "custom"))), (PF_SLIDER, "width_of_range","Width of range (%)", 33,(1,100,1)), (PF_SLIDER, "border_l","Left border (custom mode)", 0,(0,254,1)), (PF_SLIDER, "border_r","Right border (custom mode)", 255,(1,255,1)), (PF_RADIO, "channel", ("Channel"), "V", (("Value [V]", "V"),("Luminance [L]", "L"),("Red [R]", "R"),("Green [G]", "G"),("Blue [B]", "B"),("Cyan [C]", "C"),("Magenta [M]", "M"),("Yellow [Y]", "Y"),("Saturation [S]", "S"))), (PF_SLIDER, "feathering","Feathering [F]", 0,(0,20,1)), (PF_TOGGLE, "mask", "Convert to layer mask", True), (PF_RADIO, "mask_mode", ("Layer mask"), "white on black", (("White on black", "white on black"),("Black on white", "black on white"))), (PF_TOGGLE, "ahc", "Add highlighting layer", True), (PF_COLOR, "hc", "Highlighting color", (29,255,210)) ], [], RangeSelection) main()