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-rw-r--r--plug-ins/common/destripe.c530
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diff --git a/plug-ins/common/destripe.c b/plug-ins/common/destripe.c
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+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * Destripe filter
+ *
+ * Copyright 1997 Marc Lehmann, heavily modified from a filter by
+ * Michael Sweet.
+ *
+ * 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 <string.h>
+
+#include <libgimp/gimp.h>
+#include <libgimp/gimpui.h>
+
+#include "libgimp/stdplugins-intl.h"
+
+
+/*
+ * Constants...
+ */
+
+#define PLUG_IN_PROC "plug-in-destripe"
+#define PLUG_IN_BINARY "destripe"
+#define PLUG_IN_ROLE "gimp-destripe"
+#define PLUG_IN_VERSION "0.2"
+#define SCALE_WIDTH 140
+#define MAX_AVG 100
+
+
+/*
+ * 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 destripe (gint32 drawable_ID,
+ GimpPreview *preview);
+static void destripe_preview (gpointer drawable_ID,
+ GimpPreview *preview);
+
+static gboolean destripe_dialog (gint32 drawable_ID);
+
+/*
+ * Globals...
+ */
+
+const GimpPlugInInfo PLUG_IN_INFO =
+{
+ NULL, /* init_proc */
+ NULL, /* quit_proc */
+ query, /* query_proc */
+ run /* run_proc */
+};
+
+typedef struct
+{
+ gboolean histogram;
+ gint avg_width;
+ gboolean preview;
+} DestripeValues;
+
+static DestripeValues vals =
+{
+ FALSE, /* histogram */
+ 36, /* average width */
+ TRUE /* preview */
+};
+
+
+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" },
+ { GIMP_PDB_DRAWABLE, "drawable", "Input drawable" },
+ { GIMP_PDB_INT32, "avg-width", "Averaging filter width (default = 36)" }
+ };
+
+ gimp_install_procedure (PLUG_IN_PROC,
+ N_("Remove vertical stripe artifacts from the image"),
+ "This plug-in tries to remove vertical stripes from "
+ "an image.",
+ "Marc Lehmann <pcg@goof.com>",
+ "Marc Lehmann <pcg@goof.com>",
+ PLUG_IN_VERSION,
+ N_("Des_tripe..."),
+ "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]; /* Return values */
+ GimpPDBStatusType status; /* Return status */
+ GimpRunMode run_mode; /* Current run mode */
+ gint32 drawable_ID;
+
+ INIT_I18N ();
+ gegl_init (NULL, NULL);
+
+ status = GIMP_PDB_SUCCESS;
+
+ values[0].type = GIMP_PDB_STATUS;
+ values[0].data.d_status = status;
+
+ *nreturn_vals = 1;
+ *return_vals = values;
+
+ run_mode = param[0].data.d_int32;
+ drawable_ID = param[2].data.d_drawable;
+
+ switch (run_mode)
+ {
+ case GIMP_RUN_INTERACTIVE:
+ /*
+ * Possibly retrieve data...
+ */
+ gimp_get_data (PLUG_IN_PROC, &vals);
+
+ /*
+ * Get information from the dialog...
+ */
+ if (! destripe_dialog (drawable_ID))
+ return;
+ break;
+
+ case GIMP_RUN_NONINTERACTIVE:
+ /*
+ * Make sure all the arguments are present...
+ */
+ if (nparams != 4)
+ status = GIMP_PDB_CALLING_ERROR;
+ else
+ vals.avg_width = param[3].data.d_int32;
+ break;
+
+ case GIMP_RUN_WITH_LAST_VALS :
+ /*
+ * Possibly retrieve data...
+ */
+ gimp_get_data (PLUG_IN_PROC, &vals);
+ break;
+
+ default :
+ status = GIMP_PDB_CALLING_ERROR;
+ break;
+ };
+
+ /*
+ * Destripe the image...
+ */
+
+ if (status == GIMP_PDB_SUCCESS)
+ {
+ if ((gimp_drawable_is_rgb (drawable_ID) ||
+ gimp_drawable_is_gray (drawable_ID)))
+ {
+ /*
+ * Run!
+ */
+ destripe (drawable_ID, NULL);
+
+ /*
+ * If run mode is interactive, flush displays...
+ */
+ if (run_mode != GIMP_RUN_NONINTERACTIVE)
+ gimp_displays_flush ();
+
+ /*
+ * Store data...
+ */
+ if (run_mode == GIMP_RUN_INTERACTIVE)
+ gimp_set_data (PLUG_IN_PROC, &vals, sizeof (vals));
+ }
+ else
+ {
+ status = GIMP_PDB_EXECUTION_ERROR;
+ }
+ };
+
+ /*
+ * Reset the current run status...
+ */
+ values[0].data.d_status = status;
+}
+
+static void
+destripe (gint32 drawable_ID,
+ GimpPreview *preview)
+{
+ GeglBuffer *src_buffer;
+ GeglBuffer *dest_buffer;
+ const Babl *format;
+ guchar *src_rows; /* image data */
+ gdouble progress, progress_inc;
+ gint x1, x2, y1;
+ gint width, height;
+ gint bpp;
+ glong *hist, *corr; /* "histogram" data */
+ gint tile_width = gimp_tile_width ();
+ gint i, x, y, ox, cols;
+
+ progress = 0.0;
+ progress_inc = 0.0;
+
+ if (preview)
+ {
+ gimp_preview_get_position (preview, &x1, &y1);
+ gimp_preview_get_size (preview, &width, &height);
+ }
+ else
+ {
+ gimp_progress_init (_("Destriping"));
+
+ if (! gimp_drawable_mask_intersect (drawable_ID,
+ &x1, &y1, &width, &height))
+ {
+ return;
+ }
+
+ progress = 0;
+ progress_inc = 0.5 * tile_width / width;
+ }
+
+ x2 = x1 + width;
+
+ if (gimp_drawable_is_rgb (drawable_ID))
+ {
+ if (gimp_drawable_has_alpha (drawable_ID))
+ format = babl_format ("R'G'B'A u8");
+ else
+ format = babl_format ("R'G'B' u8");
+ }
+ else
+ {
+ if (gimp_drawable_has_alpha (drawable_ID))
+ format = babl_format ("Y'A u8");
+ else
+ format = babl_format ("Y' u8");
+ }
+
+ bpp = babl_format_get_bytes_per_pixel (format);
+
+ /*
+ * Setup for filter...
+ */
+
+ src_buffer = gimp_drawable_get_buffer (drawable_ID);
+ dest_buffer = gimp_drawable_get_shadow_buffer (drawable_ID);
+
+ hist = g_new (long, width * bpp);
+ corr = g_new (long, width * bpp);
+ src_rows = g_new (guchar, tile_width * height * bpp);
+
+ memset (hist, 0, width * bpp * sizeof (long));
+
+ /*
+ * collect "histogram" data.
+ */
+
+ for (ox = x1; ox < x2; ox += tile_width)
+ {
+ guchar *rows = src_rows;
+
+ cols = x2 - ox;
+ if (cols > tile_width)
+ cols = tile_width;
+
+ gegl_buffer_get (src_buffer, GEGL_RECTANGLE (ox, y1, cols, height), 1.0,
+ format, rows,
+ GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
+
+ for (y = 0; y < height; y++)
+ {
+ long *h = hist + (ox - x1) * bpp;
+ guchar *row_end = rows + cols * bpp;
+
+ while (rows < row_end)
+ *h++ += *rows++;
+ }
+
+ if (! preview)
+ gimp_progress_update (progress += progress_inc);
+ }
+
+ /*
+ * average out histogram
+ */
+
+ {
+ gint extend = (vals.avg_width / 2) * bpp;
+
+ for (i = 0; i < MIN (3, bpp); i++)
+ {
+ long *h = hist - extend + i;
+ long *c = corr - extend + i;
+ long sum = 0;
+ gint cnt = 0;
+
+ for (x = -extend; x < width * bpp; x += bpp)
+ {
+ if (x + extend < width * bpp)
+ {
+ sum += h[ extend]; cnt++;
+ }
+
+ if (x - extend >= 0)
+ {
+ sum -= h[-extend]; cnt--;
+ }
+
+ if (x >= 0)
+ {
+ if (*h)
+ *c = ((sum / cnt - *h) << 10) / *h;
+ else
+ *c = G_MAXINT;
+ }
+
+ h += bpp;
+ c += bpp;
+ }
+ }
+ }
+
+ /*
+ * remove stripes.
+ */
+
+ for (ox = x1; ox < x2; ox += tile_width)
+ {
+ guchar *rows = src_rows;
+
+ cols = x2 - ox;
+ if (cols > tile_width)
+ cols = tile_width;
+
+ gegl_buffer_get (src_buffer, GEGL_RECTANGLE (ox, y1, cols, height), 1.0,
+ format, rows,
+ GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
+
+ if (! preview)
+ gimp_progress_update (progress += progress_inc);
+
+ for (y = 0; y < height; y++)
+ {
+ long *c = corr + (ox - x1) * bpp;
+ guchar *row_end = rows + cols * bpp;
+
+ if (vals.histogram)
+ {
+ while (rows < row_end)
+ {
+ *rows = MIN (255, MAX (0, 128 + (*rows * *c >> 10)));
+ c++; rows++;
+ }
+ }
+ else
+ {
+ while (rows < row_end)
+ {
+ *rows = MIN (255, MAX (0, *rows + (*rows * *c >> 10) ));
+ c++; rows++;
+ }
+ }
+ }
+
+ gegl_buffer_set (dest_buffer, GEGL_RECTANGLE (ox, y1, cols, height), 0,
+ format, src_rows,
+ GEGL_AUTO_ROWSTRIDE);
+
+ if (! preview)
+ gimp_progress_update (progress += progress_inc);
+ }
+
+ g_free (src_rows);
+
+ g_object_unref (src_buffer);
+
+ if (preview)
+ {
+ guchar *buffer = g_new (guchar, width * height * bpp);
+
+ gegl_buffer_get (dest_buffer, GEGL_RECTANGLE (x1, y1, width, height), 1.0,
+ format, buffer,
+ GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
+
+ gimp_preview_draw_buffer (GIMP_PREVIEW (preview),
+ buffer, width * bpp);
+
+ g_free (buffer);
+ g_object_unref (dest_buffer);
+ }
+ else
+ {
+ g_object_unref (dest_buffer);
+
+ gimp_progress_update (1.0);
+
+ gimp_drawable_merge_shadow (drawable_ID, TRUE);
+ gimp_drawable_update (drawable_ID,
+ x1, y1, width, height);
+ }
+
+ g_free (hist);
+ g_free (corr);
+}
+
+static void
+destripe_preview (gpointer drawable_ID,
+ GimpPreview *preview)
+{
+ destripe (GPOINTER_TO_INT (drawable_ID), preview);
+}
+
+
+static gboolean
+destripe_dialog (gint32 drawable_ID)
+{
+ GtkWidget *dialog;
+ GtkWidget *main_vbox;
+ GtkWidget *preview;
+ GtkWidget *table;
+ GtkWidget *button;
+ GtkObject *adj;
+ gboolean run;
+
+ gimp_ui_init (PLUG_IN_BINARY, TRUE);
+
+ dialog = gimp_dialog_new (_("Destripe"), 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);
+
+ preview = gimp_drawable_preview_new_from_drawable_id (drawable_ID);
+ gtk_box_pack_start (GTK_BOX (main_vbox), preview, TRUE, TRUE, 0);
+ gtk_widget_show (preview);
+
+ g_signal_connect_swapped (preview, "invalidated",
+ G_CALLBACK (destripe_preview),
+ GINT_TO_POINTER (drawable_ID));
+
+ table = gtk_table_new (1, 3, FALSE);
+ gtk_table_set_col_spacings (GTK_TABLE (table), 6);
+ gtk_box_pack_start (GTK_BOX (main_vbox), table, FALSE, FALSE, 0);
+ gtk_widget_show (table);
+
+ adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
+ _("_Width:"), SCALE_WIDTH, 0,
+ vals.avg_width, 2, MAX_AVG, 1, 10, 0,
+ TRUE, 0, 0,
+ NULL, NULL);
+ g_signal_connect (adj, "value-changed",
+ G_CALLBACK (gimp_int_adjustment_update),
+ &vals.avg_width);
+ g_signal_connect_swapped (adj, "value-changed",
+ G_CALLBACK (gimp_preview_invalidate),
+ preview);
+
+ button = gtk_check_button_new_with_mnemonic (_("Create _histogram"));
+ gtk_box_pack_start (GTK_BOX (main_vbox), button, FALSE, FALSE, 0);
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), vals.histogram);
+ gtk_widget_show (button);
+
+ g_signal_connect (button, "toggled",
+ G_CALLBACK (gimp_toggle_button_update),
+ &vals.histogram);
+ g_signal_connect_swapped (button, "toggled",
+ G_CALLBACK (gimp_preview_invalidate),
+ preview);
+
+ gtk_widget_show (dialog);
+
+ run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
+
+ gtk_widget_destroy (dialog);
+
+ return run;
+}
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