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/*
* Wavelet decompose plug-in by Miroslav Talasek, miroslav.talasek@seznam.cz
*/
/*
* 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 3 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, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "libgimp/stdplugins-intl.h"
#define PLUG_IN_PROC "plug-in-wavelet-decompose"
#define PLUG_IN_ROLE "gimp-wavelet-decompose"
#define PLUG_IN_BINARY "wavelet-decompose"
#define SCALE_WIDTH 120
#define ENTRY_WIDTH 5
typedef struct
{
gint scales;
gint create_group;
gint create_masks;
} WaveletDecomposeParams;
/* Declare local functions.
*/
static void query (void);
static void run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
static void wavelet_blur (gint32 drawable_id,
gint radius);
static gboolean wavelet_decompose_dialog (void);
/* create a few globals, set default values */
static WaveletDecomposeParams wavelet_params =
{
5, /* default scales */
1, /* create group */
0 /* do not add mask by default */
};
const GimpPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
MAIN ()
static void
query (void)
{
static const GimpParamDef args[] =
{
{ GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), "
"RUN-NONINTERACTIVE (1) }" },
{ GIMP_PDB_IMAGE, "image", "Input image (unused)" },
{ GIMP_PDB_DRAWABLE, "drawable", "Input drawable" },
{ GIMP_PDB_INT32, "scales", "Number of scales (1-7)" },
{ GIMP_PDB_INT32, "create-group", "Create a layer group to store the "
"decomposition" },
{ GIMP_PDB_INT32, "create-masks", "Add a layer mask to each scales "
"layers" }
};
gimp_install_procedure (PLUG_IN_PROC,
N_("Wavelet decompose"),
"Compute and render wavelet scales",
"Miroslav Talasek <miroslav.talasek@seznam.cz>",
"Miroslav Talasek <miroslav.talasek@seznam.cz>",
"19january 2017",
N_("_Wavelet-decompose..."),
"RGB*, GRAY*",
GIMP_PLUGIN,
G_N_ELEMENTS (args), 0,
args, NULL);
gimp_plugin_menu_register (PLUG_IN_PROC, "<Image>/Filters/Enhance");
}
static void
run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[1];
GimpPDBStatusType status = GIMP_PDB_SUCCESS;
gint32 image_id;
gint32 drawable_id;
GimpRunMode run_mode;
run_mode = param[0].data.d_int32;
INIT_I18N();
gegl_init (NULL, NULL);
*nreturn_vals = 1;
*return_vals = values;
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = status;
image_id = param[1].data.d_image;
drawable_id = param[2].data.d_drawable;
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
gimp_get_data (PLUG_IN_PROC, &wavelet_params);
if (! wavelet_decompose_dialog ())
return;
break;
case GIMP_RUN_NONINTERACTIVE:
if (nparams != 6)
{
status = GIMP_PDB_CALLING_ERROR;
}
else
{
wavelet_params.scales = param[3].data.d_int32;
wavelet_params.create_group = param[4].data.d_int32;
wavelet_params.create_masks = param[5].data.d_int32;
}
break;
case GIMP_RUN_WITH_LAST_VALS:
gimp_get_data (PLUG_IN_PROC, &wavelet_params);
break;
default:
break;
}
if (status == GIMP_PDB_SUCCESS)
{
gint32 *scale_ids;
gint32 new_scale_id;
gint32 parent_id;
GimpLayerMode grain_extract_mode = GIMP_LAYER_MODE_GRAIN_EXTRACT;
GimpLayerMode grain_merge_mode = GIMP_LAYER_MODE_GRAIN_MERGE;
gint id;
gimp_progress_init (_("Wavelet-Decompose"));
gimp_image_undo_group_start (image_id);
gimp_image_freeze_layers (image_id);
if (wavelet_params.create_group)
{
gint32 group_id = gimp_layer_group_new (image_id);
gimp_item_set_name (group_id, _("Decomposition"));
gimp_item_set_visible (group_id, FALSE);
gimp_image_insert_layer (image_id, group_id,
gimp_item_get_parent (drawable_id),
gimp_image_get_item_position (image_id,
drawable_id));
parent_id = group_id;
}
else
parent_id = -1;
scale_ids = g_new (gint32, wavelet_params.scales);
new_scale_id = gimp_layer_copy (drawable_id);
gimp_image_insert_layer (image_id, new_scale_id, parent_id,
gimp_image_get_item_position (image_id,
drawable_id));
/* the exact result of the grain-extract and grain-merge modes depends on
* the choice of (gamma-corrected) midpoint intensity value. for the
* non-legacy modes, the midpoint value is 0.5, which isn't representable
* exactly using integer precision. for the legacy modes, the midpoint
* value is 128/255 (i.e., 0x80), which is representable exactly using
* (gamma-corrected) integer precision. we therefore use the legacy
* modes when the input image precision is integer, and only use the
* (preferable) non-legacy modes when the input image precision is
* floating point.
*
* this avoids imperfect reconstruction of the image when using integer
* precision. see bug #786844.
*/
switch (gimp_image_get_precision (image_id))
{
case GIMP_PRECISION_U8_LINEAR:
case GIMP_PRECISION_U8_GAMMA:
case GIMP_PRECISION_U16_LINEAR:
case GIMP_PRECISION_U16_GAMMA:
case GIMP_PRECISION_U32_LINEAR:
case GIMP_PRECISION_U32_GAMMA:
grain_extract_mode = GIMP_LAYER_MODE_GRAIN_EXTRACT_LEGACY;
grain_merge_mode = GIMP_LAYER_MODE_GRAIN_MERGE_LEGACY;
break;
case GIMP_PRECISION_HALF_LINEAR:
case GIMP_PRECISION_HALF_GAMMA:
case GIMP_PRECISION_FLOAT_LINEAR:
case GIMP_PRECISION_FLOAT_GAMMA:
case GIMP_PRECISION_DOUBLE_LINEAR:
case GIMP_PRECISION_DOUBLE_GAMMA:
grain_extract_mode = GIMP_LAYER_MODE_GRAIN_EXTRACT;
grain_merge_mode = GIMP_LAYER_MODE_GRAIN_MERGE;
break;
}
for (id = 0 ; id < wavelet_params.scales; ++id)
{
gint32 blur_id, tmp_id;
gchar scale_name[20];
gimp_progress_update ((gdouble) id / (gdouble) wavelet_params.scales);
scale_ids[id] = new_scale_id;
g_snprintf (scale_name, sizeof (scale_name), _("Scale %d"), id + 1);
gimp_item_set_name (new_scale_id, scale_name);
tmp_id = gimp_layer_copy (new_scale_id);
gimp_image_insert_layer (image_id, tmp_id, parent_id,
gimp_image_get_item_position (image_id,
new_scale_id));
wavelet_blur (tmp_id, pow(2.0, id));
blur_id = gimp_layer_copy (tmp_id);
gimp_image_insert_layer (image_id, blur_id, parent_id,
gimp_image_get_item_position (image_id,
tmp_id));
gimp_layer_set_mode (tmp_id, grain_extract_mode);
new_scale_id = gimp_image_merge_down (image_id, tmp_id,
GIMP_EXPAND_AS_NECESSARY);
scale_ids[id] = new_scale_id;
gimp_item_set_visible (new_scale_id, FALSE);
new_scale_id = blur_id;
}
gimp_item_set_name (new_scale_id, _("Residual"));
for (id = 0; id < wavelet_params.scales; id++)
{
gimp_image_reorder_item (image_id, scale_ids[id], parent_id,
gimp_image_get_item_position (image_id,
new_scale_id));
gimp_layer_set_mode (scale_ids[id], grain_merge_mode);
if (wavelet_params.create_masks)
{
gint32 mask_id = gimp_layer_create_mask (scale_ids[id],
GIMP_ADD_MASK_WHITE);
gimp_layer_add_mask (scale_ids[id], mask_id);
}
gimp_item_set_visible (scale_ids[id], TRUE);
}
if (wavelet_params.create_group)
gimp_item_set_visible (parent_id, TRUE);
g_free (scale_ids);
gimp_image_thaw_layers (image_id);
gimp_image_undo_group_end (image_id);
gimp_progress_update (1.0);
values[0].data.d_status = status;
gimp_displays_flush ();
/* set data for next use of filter */
if (run_mode == GIMP_RUN_INTERACTIVE)
gimp_set_data (PLUG_IN_PROC,
&wavelet_params, sizeof (WaveletDecomposeParams));
}
gegl_exit ();
}
static void
wavelet_blur (gint32 drawable_id,
gint radius)
{
gint x, y, width, height;
if (gimp_drawable_mask_intersect (drawable_id, &x, &y, &width, &height))
{
GeglBuffer *buffer = gimp_drawable_get_buffer (drawable_id);
GeglBuffer *shadow = gimp_drawable_get_shadow_buffer (drawable_id);
gegl_render_op (buffer, shadow,
"gegl:wavelet-blur",
"radius", (gdouble) radius,
NULL);
gegl_buffer_flush (shadow);
gimp_drawable_merge_shadow (drawable_id, FALSE);
gimp_drawable_update (drawable_id, x, y, width, height);
g_object_unref (buffer);
g_object_unref (shadow);
}
}
static gboolean
wavelet_decompose_dialog (void)
{
GtkWidget *dialog;
GtkWidget *main_vbox;
GtkWidget *table;
GtkWidget *button;
GtkObject *adj;
gboolean run;
gimp_ui_init (PLUG_IN_BINARY, TRUE);
dialog = gimp_dialog_new (_("Wavelet decompose"), PLUG_IN_ROLE,
NULL, 0,
gimp_standard_help_func, PLUG_IN_PROC,
_("_Cancel"), GTK_RESPONSE_CANCEL,
_("_OK"), GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gimp_window_set_transient (GTK_WINDOW (dialog));
main_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12);
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
main_vbox, TRUE, TRUE, 0);
gtk_widget_show (main_vbox);
table = gtk_table_new (3, 1, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_table_set_row_spacings (GTK_TABLE (table), 6);
gtk_box_pack_start (GTK_BOX (main_vbox), table, FALSE, FALSE, 0);
gtk_widget_show (table);
/* scales */
adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
_("Scales:"), SCALE_WIDTH, ENTRY_WIDTH,
wavelet_params.scales,
1.0, 7.0, 1.0, 1.0, 0,
TRUE, 0, 0,
NULL, NULL);
g_signal_connect (adj, "value-changed",
G_CALLBACK (gimp_int_adjustment_update),
&wavelet_params.scales);
/* create group layer */
button = gtk_check_button_new_with_mnemonic (_("Create a layer group to store the decomposition"));
gtk_box_pack_start (GTK_BOX (main_vbox), button, FALSE, FALSE, 0);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button),
wavelet_params.create_group);
gtk_widget_show (button);
g_signal_connect (button, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&wavelet_params.create_group);
/* create layer masks */
button = gtk_check_button_new_with_mnemonic (_("Add a layer mask to each scales layers"));
gtk_box_pack_start (GTK_BOX (main_vbox), button, FALSE, FALSE, 0);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button),
wavelet_params.create_masks);
gtk_widget_show (button);
g_signal_connect (button, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&wavelet_params.create_masks);
gtk_widget_show (dialog);
run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
gtk_widget_destroy (dialog);
return run;
}
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