Revision: 56432
http://sourceforge.net/p/brlcad/code/56432
Author: mohitdaga
Date: 2013-08-01 18:57:28 +0000 (Thu, 01 Aug 2013)
Log Message:
-----------
Add functions which performs operations between two images.
Modified Paths:
--------------
brlcad/trunk/include/icv.h
brlcad/trunk/src/libicv/operations.c
Modified: brlcad/trunk/include/icv.h
===================================================================
--- brlcad/trunk/include/icv.h 2013-08-01 18:51:52 UTC (rev 56431)
+++ brlcad/trunk/include/icv.h 2013-08-01 18:57:28 UTC (rev 56432)
@@ -393,7 +393,42 @@
*/
void icv_pow_val(icv_image_t* img, double val);
+/**
+ * This routine adds pixel value of one image to pixel value of
+ * other pixel and inserts in the same index of the output image.
+ *
+ * Also it sanitizes the image.
+ */
+icv_image_t *icv_add(icv_image_t *img1, icv_image_t *img2);
+/**
+ * This routine substracts pixel value of one image from pixel value
+ * of other pixel and inserts the result at the same index of the
+ * output image.
+ *
+ * Also it sanitizes the image.
+ */
+icv_image_t *icv_sub(icv_image_t *img1, icv_image_t *img2);
+
+/**
+ * This routine multiplies pixel value of one image to pixel value of
+ * other pixel and inserts the result at the same index of the
+ * output image.
+ *
+ * Also it sanitizes the image.
+ */
+icv_image_t *icv_multiply(icv_image_t *img1, icv_image_t *img2);
+
+/**
+ * This routine divides pixel value of one image from pixel value of
+ * other pixel and inserts the result at the same index of the
+ * output image.
+ *
+ * Also it sanitizes the image.
+ */
+icv_image_t *icv_divides(icv_image_t *img1, icv_image_t *img2);
+
+
typedef enum {
ICV_FILTER_LOW_PASS,
ICV_FILTER_LAPLACIAN,
Modified: brlcad/trunk/src/libicv/operations.c
===================================================================
--- brlcad/trunk/src/libicv/operations.c 2013-08-01 18:51:52 UTC (rev
56431)
+++ brlcad/trunk/src/libicv/operations.c 2013-08-01 18:57:28 UTC (rev
56432)
@@ -120,6 +120,111 @@
icv_sanitize(img);
}
+icv_image_t *icv_add(icv_image_t *img1, icv_image_t *img2)
+{
+ double *data1, *data2, *out_data;
+ size_t size;
+ icv_image_t *out_img;
+
+ if ((img1->width == img2->width) && (img1->height == img2->height) &&
(img1->channels == img2->channels)) {
+ bu_log("icv_add : Image Parameters not Equal");
+ return NULL;
+ }
+
+ data1 =img1->data;
+ data2 =img2->data;
+
+ out_img = icv_create(img1->width, img1->height, img1->color_space);
+
+ out_data = out_img->data;
+
+ for (size = img1->width*img1->height*img1->channels; size>0; size--)
+ *out_data++ = *data1++ + *data2++;
+
+ icv_sanitize(out_img);
+
+ return out_img;
+}
+
+icv_image_t *icv_sub(icv_image_t *img1, icv_image_t *img2)
+{
+ double *data1, *data2, *out_data;
+ size_t size;
+ icv_image_t *out_img;
+
+ if ((img1->width == img2->width) && (img1->height == img2->height) &&
(img1->channels == img2->channels)) {
+ bu_log("icv_add : Image Parameters not Equal");
+ return NULL;
+ }
+
+ data1 =img1->data;
+ data2 =img2->data;
+
+ out_img = icv_create(img1->width, img1->height, img1->color_space);
+
+ out_data = out_img->data;
+
+ for (size = img1->width*img1->height*img1->channels; size>0; size--)
+ *out_data++ = *data1++ - *data2++;
+
+ icv_sanitize(out_img);
+
+ return out_img;
+}
+
+icv_image_t *icv_multiply(icv_image_t *img1, icv_image_t *img2)
+{
+ double *data1, *data2, *out_data;
+ size_t size;
+ icv_image_t *out_img;
+
+ if ((img1->width == img2->width) && (img1->height == img2->height) &&
(img1->channels == img2->channels)) {
+ bu_log("icv_add : Image Parameters not Equal");
+ return NULL;
+ }
+
+ data1 =img1->data;
+ data2 =img2->data;
+
+ out_img = icv_create(img1->width, img1->height, img1->color_space);
+
+ out_data = out_img->data;
+
+ for (size = img1->width*img1->height*img1->channels; size>0; size--)
+ *out_data++ = *data1++ * *data2++;
+
+ icv_sanitize(out_img);
+
+ return out_img;
+}
+
+
+icv_image_t *icv_divide(icv_image_t *img1, icv_image_t *img2)
+{
+ double *data1, *data2, *out_data;
+ size_t size;
+ icv_image_t *out_img;
+
+ if ((img1->width == img2->width) && (img1->height == img2->height) &&
(img1->channels == img2->channels)) {
+ bu_log("icv_add : Image Parameters not Equal");
+ return NULL;
+ }
+
+ data1 =img1->data;
+ data2 =img2->data;
+
+ out_img = icv_create(img1->width, img1->height, img1->color_space);
+
+ out_data = out_img->data;
+
+ for (size = img1->width*img1->height*img1->channels; size>0; size--)
+ *out_data++ = *data1++ / *data2++;
+
+ icv_sanitize(out_img);
+
+ return out_img;
+}
+
/*
* Local Variables:
* tab-width: 8
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