DCT finished

1 files changed, 32 insertions, 1 deletions

diff --git a/src/main.c b/src/main.c
index 1b25658..3867112 100644
--- a/src/main.c
+++ b/src/main.c
@@ -36,6 +36,19 @@ void quanize_data(int * data,int * qdata)
 	}
 }
 
+void dequanize_data(DCTELEM * data,DCTELEM * qdata)
+{
+	int i,j;
+	for (i = 0; i < 8; i++)
+	{
+		for(j=0;j < 8;j++)
+		{
+			*(data + ((i * 8) + j)) =( *(data + ((i * 8) + j))) *( *(qdata + ((i * 8) + j))) ;
+		}
+	}
+}
+
+
 void scale_data(DCTELEM * data, DCTELEM scale)
 {
 	int i,j;
@@ -48,6 +61,20 @@ void scale_data(DCTELEM * data, DCTELEM scale)
 	}
 
 }
+
+void scaleDownData(DCTELEM * data,int scale)
+{
+	int i,j;
+	for (i = 0; i < 8; i++)
+	{
+		for(j=0;j < 8;j++)
+		{
+			*(data + ((i * 8) + j)) =( *(data + ((i * 8) + j))) /scale ;
+		}
+	}
+}
+
+
 /*void dump_data(DCTELEM * data )
 {
 	int i,j;
@@ -151,12 +178,16 @@ int main(int argc, char *argv[]) {
 					//dump_data(blok8x8);
 					//printf("\nafter DCT\n");
 					jpeg_fdct_ifast(blok8x8);
+					// Scaling after DCT
+					scaleDownData(blok8x8,8);
+
+
 					// After dct
 					//dump_data(blok8x8);
-
 					quanize_data(blok8x8,quan_data);
 					//printf("\nafter quantize\n");
 					//dump_data(blok8x8);
+					dequanize_data(blok8x8,quan_data);
 
 					IDCT(blok8x8, blok8x8_2);
 					//printf("\nafter idct\n");