(patched) gocr-0.44

[swftools.git] / lib / gocr / otsu.h

diff --git a/lib/gocr/otsu.h b/lib/gocr/otsu.h
new file mode 100644 (file)
index 0000000..acb1637
--- /dev/null
+++ b/lib/gocr/otsu.h
@@ -0,0 +1,23 @@
+/*
+
+    see README for EMAIL-address
+
+ */
+
+
+/*======================================================================*/
+/* OTSU global thresholding routine                                     */
+/*   takes a 2D unsigned char array pointer, number of rows, and        */
+/*   number of cols in the array. returns the value of the threshold    */
+/*======================================================================*/
+int
+otsu (unsigned char *image, int rows, int cols, int x0, int y0, int dx, int dy, int vvv);
+
+
+/*======================================================================*/
+/* thresholding the image  (set threshold to 128+32=160=0xA0)           */
+/*   now we have a fixed thresholdValue good to recognize on gray image */
+/*   - so lower bits can used for other things (bad design?)            */
+/*======================================================================*/
+int
+thresholding (unsigned char *image, int rows, int cols, int x0, int y0, int dx, int dy, int thresholdValue);