Created
July 28, 2018 02:43
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An updated version of the GIMP Ferenc Kalman (feca) HDR plugin, tested with GIMP 2.10
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| #!/usr/bin/env python | |
| # Gimp-Python - allows the writing of Gimp plugins in Python. | |
| # Copyright (C) 2007 Kalman, Ferenc <fkalman@index.hu> | |
| # | |
| # This program is free software; you can redistribute it and/or modify | |
| # it under the terms of the GNU General Public License as published by | |
| # the Free Software Foundation; either version 2 of the License, or | |
| # (at your option) any later version. | |
| # | |
| # 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. See the | |
| # GNU General Public License for more details. | |
| # | |
| # You should have received a copy of the GNU General Public License | |
| # along with this program; if not, write to the Free Software | |
| # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
| import math, struct | |
| from gimpfu import * | |
| class pixel_fetcher: | |
| def __init__(self, drawable): | |
| self.col = -1 | |
| self.row = -1 | |
| self.img_width = drawable.width | |
| self.img_height = drawable.height | |
| self.img_bpp = drawable.bpp | |
| self.img_has_alpha = drawable.has_alpha | |
| self.tile_width = 64 | |
| self.tile_height = 64 | |
| self.bg_colour = '\0\0\0\0' | |
| self.bounds = drawable.mask_bounds | |
| self.drawable = drawable | |
| self.tile = None | |
| def set_bg_colour(self, r, g, b, a): | |
| self.bg_colour = struct.pack('BBB', r,g,b) | |
| if self.img_has_alpha: | |
| self.bg_colour = self.bg_colour + chr(a) | |
| def get_pixel(self, x, y): | |
| sel_x1, sel_y1, sel_x2, sel_y2 = self.bounds | |
| if x < sel_x1 or x >= sel_x2 or y < sel_y1 or y >= sel_y2: | |
| return self.bg_colour | |
| col = x / self.tile_width | |
| coloff = x % self.tile_width | |
| row = y / self.tile_height | |
| rowoff = y % self.tile_height | |
| if col != self.col or row != self.row or self.tile == None: | |
| self.tile = self.drawable.get_tile2(FALSE, row, col) | |
| if self.tile is None: | |
| print("Tile is none at "+str(row)+","+str(col)) | |
| self.col = col | |
| self.row = row | |
| return self.tile[coloff, rowoff] | |
| def set_pixel(self, x, y, pixel): | |
| sel_x1, sel_y1, sel_x2, sel_y2 = self.bounds | |
| if x < sel_x1 or x >= sel_x2 or y < sel_y1 or y >= sel_y2: | |
| return | |
| col = x / self.tile_width | |
| coloff = x % self.tile_width | |
| row = y / self.tile_height | |
| rowoff = y % self.tile_height | |
| if col != self.col or row != self.row or self.tile == None: | |
| self.tile = self.drawable.get_tile2(FALSE, row, col) | |
| if self.tile is None: | |
| print("Tile is none at "+str(row)+","+str(col)) | |
| self.col = col | |
| self.row = row | |
| self.tile[coloff, rowoff] = pixel | |
| class Dummy: | |
| pass | |
| def python_feca_hdr(image, drawable, width1, width2, blur, levelLight, levelDark): | |
| self = Dummy() | |
| self.width = drawable.width | |
| self.height = drawable.height | |
| self.bpp = drawable.bpp | |
| self.has_alpha = drawable.has_alpha | |
| self.bounds = drawable.mask_bounds | |
| self.sel_x1, self.sel_y1, self.sel_x2, self.sel_y2 = \ | |
| drawable.mask_bounds | |
| self.sel_w = self.sel_x2 - self.sel_x1 | |
| self.sel_h = self.sel_y2 - self.sel_y1 | |
| gimp.tile_cache_ntiles(2 * (self.width + 63) / 64) | |
| if (len(image.layers) != 3): | |
| pdb.gimp_message("You need have exactly 3 layers (order is not important): Normal, +EV, -EV!") | |
| return | |
| pdb.gimp_image_undo_group_start(image) | |
| layer_normal = image.layers[2] | |
| layer_dark = image.layers[1] | |
| layer_bright = image.layers[0] | |
| layer_normal.add_alpha() | |
| progress = 0 | |
| max_progress = 5 | |
| gimp.progress_init("High Dynamic Range with Tone Mapping...") | |
| pfn = pixel_fetcher(layer_normal) | |
| pfd = pixel_fetcher(layer_dark) | |
| pfb = pixel_fetcher(layer_bright) | |
| cn = 0 | |
| cd = 0 | |
| cb = 0 | |
| for row in range(self.sel_y1, self.sel_y2, 50): | |
| for col in range(self.sel_x1, self.sel_x2, 50): | |
| pixeln = pfn.get_pixel(col, row) | |
| pixelb = pfb.get_pixel(col, row) | |
| pixeld = pfd.get_pixel(col, row) | |
| rn = ord(pixeln[0]) + 1 | |
| gn = ord(pixeln[1]) + 1 | |
| bn = ord(pixeln[2]) + 1 | |
| rd = ord(pixeld[0]) + 1 | |
| gd = ord(pixeld[1]) + 1 | |
| bd = ord(pixeld[2]) + 1 | |
| rb = ord(pixelb[0]) + 1 | |
| gb = ord(pixelb[1]) + 1 | |
| bb = ord(pixelb[2]) + 1 | |
| if (rn > rd): cn = cn +1 | |
| else: cd = cd + 1 | |
| if (gn > gd): cn = cn +1 | |
| else: cd = cd + 1 | |
| if (bn > bd): cn = cn +1 | |
| else: cd = cd + 1 | |
| if (rn > rb): cn = cn +1 | |
| else: cb = cb + 1 | |
| if (gn > gb): cn = cn +1 | |
| else: cb = cb + 1 | |
| if (bn > bb): cn = cn +1 | |
| else: cb = cb + 1 | |
| if (rd > rb): cd = cd +1 | |
| else: cb = cb + 1 | |
| if (gd > gb): cd = cd +1 | |
| else: cb = cb + 1 | |
| if (bd > bb): cd = cd +1 | |
| else: cb = cb + 1 | |
| if (cn > cd): | |
| if (cn > cb): | |
| layer = layer_bright | |
| layer_bright = layer_normal | |
| if (cd > cb): | |
| layer_normal = layer_dark | |
| layer_dark = layer | |
| image.lower_layer(layer_normal) | |
| else: | |
| layer_normal = layer | |
| image.lower_layer(layer_normal) | |
| image.lower_layer(layer_normal) | |
| else: | |
| if (cd > cb): | |
| layer = layer_bright | |
| layer_bright = layer_dark | |
| if (cn > cb): | |
| layer_dark = layer | |
| else: | |
| layer_dark = layer_normal | |
| layer_normal = layer | |
| image.lower_layer(layer_normal) | |
| image.lower_layer(layer_normal) | |
| else: | |
| layer = layer_normal | |
| layer_normal = layer_dark | |
| layer_dark = layer | |
| image.lower_layer(layer_normal) | |
| if (layer_dark.mask != None): | |
| pdb.gimp_layer_remove_mask(layer_dark, 1) | |
| if (layer_bright.mask != None): | |
| pdb.gimp_layer_remove_mask(layer_bright, 1) | |
| layer_two = layer_normal.copy() | |
| layer_two.name = "Dark" | |
| image.add_layer(layer_two, 0) | |
| progress += 1 | |
| gimp.progress_update(float(progress) / max_progress) | |
| cp2 = (0,0, 255-width2,25, 255-width1,240, 255,255) | |
| pdb.gimp_curves_spline(layer_two, HISTOGRAM_VALUE, 8, cp2) | |
| pdb.gimp_drawable_set_visible(layer_two, 0) | |
| layer_one = layer_normal.copy() | |
| layer_one.name = "Bright" | |
| image.add_layer(layer_one, 0) | |
| cp1 = [0,255, width1,240, width2,25, 255,0] | |
| pdb.gimp_curves_spline(layer_one, HISTOGRAM_VALUE, 8, cp1) | |
| pdb.gimp_drawable_set_visible(layer_one, 0) | |
| pdb.plug_in_gauss_rle2(image, layer_two, blur, blur) | |
| pdb.plug_in_gauss_rle2(image, layer_one, blur, blur) | |
| progress += 1 | |
| gimp.progress_update(float(progress) / max_progress) | |
| progress += 1 | |
| gimp.progress_update(float(progress) / max_progress) | |
| if (layer_dark.mask == None): | |
| mask_dark = pdb.gimp_layer_create_mask(layer_dark, 0) | |
| pdb.gimp_layer_add_mask(layer_dark, mask_dark) | |
| else: | |
| mask_dark = layer_dark.mask | |
| if (layer_bright.mask == None): | |
| mask_bright = pdb.gimp_layer_create_mask(layer_bright, 0) | |
| pdb.gimp_layer_add_mask(layer_bright, mask_bright) | |
| else: | |
| mask_bright = layer_bright.mask | |
| progress += 1 | |
| gimp.progress_update(float(progress) / max_progress) | |
| pdb.gimp_edit_copy(layer_two) | |
| floating_sel = pdb.gimp_edit_paste(mask_dark, 0) | |
| pdb.gimp_floating_sel_anchor(floating_sel) | |
| progress += 1 | |
| gimp.progress_update(float(progress) / max_progress) | |
| pdb.gimp_edit_copy(layer_one) | |
| floating_sel = pdb.gimp_edit_paste(mask_bright, 0) | |
| pdb.gimp_floating_sel_anchor(floating_sel) | |
| pdb.gimp_image_remove_layer(image, layer_one) | |
| pdb.gimp_image_remove_layer(image, layer_two) | |
| cp1 = [0,0, 128,128-levelLight, 255,255] | |
| pdb.gimp_curves_spline(layer_bright, HISTOGRAM_VALUE, 6, cp1) | |
| cp1 = [0,0, 128,128+levelDark, 255,255] | |
| pdb.gimp_curves_spline(layer_dark, HISTOGRAM_VALUE, 6, cp1) | |
| pdb.gimp_image_flatten(image) | |
| pdb.gimp_image_undo_group_end(image) | |
| register( | |
| "python_fu_feca_hdr", | |
| "High dynamic range with tone mapping", | |
| "High dynamic range with tone mapping", | |
| "Ferenc Kalman", | |
| "Ferenc Kalman", | |
| "2007", | |
| "<Image>/Python-Fu/Render/HDR tone mapping", | |
| "*", | |
| [ | |
| (PF_SPINNER, "width1", "Extreme value width (10-50)", 40, (10, 50, 1)), | |
| (PF_SPINNER, "width2", "Greater width (20-100)", 50, (20, 100, 1)), | |
| (PF_SPINNER, "blur", "Blurring of extreme colors (0-50)", 10, (0, 50, 1)), | |
| (PF_SPINNER, "levelLight", "Light colors darking (-100-100)", 30, (-100, 100, 1)), | |
| (PF_SPINNER, "levelDark", "Dark colors lighting (-100-100)", 30, (-100, 100, 1)) | |
| ], | |
| [], | |
| python_feca_hdr) | |
| main() |
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