Revision 0:648f3a4b6ad8, committed 2018-04-19

Comitter:

hrajgadia

Date:

Thu Apr 19 19:40:09 2018 +0000

Commit message:

Edge Detection

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/image.cpp	Thu Apr 19 19:40:09 2018 +0000
@@ -0,0 +1,62 @@
+/** 06_frdm_serial
+ * Serial demo program for the FRDM-KL25Z board
+ * Select UART0 for communication via OpenSDA's USB-UART converter
+ * Default spedd and format are: 9600 bps, 8-bit, no parity, 1 stop bit 
+ */
+ 
+#include "mbed.h"
+ 
+Serial pc(USBTX,USBRX);     //UART0 via OpenSDA
+ 
+ 
+ 
+int ** sobel(int **c,int h,int w)
+{   
+    int **image = (int**)malloc(sizeof(int*)*(h-2));
+    for( int i=0;i<h-2;i++)
+    {
+        image[i]=(int*)malloc(sizeof(int)*(w-2));
+    }
+ 
+    int x[3][3]={{1,0,-1},{2,0,-2},{1,0,-1}};
+    int y[3][3]={{1,2,1},{0,0,0},{-1,-2,-1}};
+ 
+    for (int i=1;i<h-1;++i){
+        for (int j=1; j<w-1; ++j){
+            int conv=0;
+            for(int k=0;k<3;++k){
+                for(int l=0;l<3;++l){
+                    image[i-1][j-1] += x[k][l]*c[i-1+k][j-1+l];
+                    conv += y[k][l]*c[i-1+k][j-1+l];
+                }
+            }
+            image[i-1][j-1]=abs(image[i-1][j-1]+abs(conv))/8;
+        }
+    }
+    
+    return image;
+}
+ 
+int main()
+{
+int width = 32; int height = 32;
+int **image = (int**)malloc(sizeof(int*)*height);
+for( int i=0;i<height;i++)
+    {
+        image[i]=(int*)malloc(sizeof(int)*width);
+    }
+for(int j=0;j<64;j++){ 
+/*Write headers*/
+    int i;
+    for(i=0;i<1024;i++){
+        image[i/32][i%32]= pc.getc();
+            }
+    
+
+    int **c1 = sobel(image,height,width);
+    for(i=0;i<=899;i++){
+        pc.putc(c1[i/30][i%30]);
+        wait(0.5);
+        }
+    }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Thu Apr 19 19:40:09 2018 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/994bdf8177cb
\ No newline at end of file