subithkumar
Please help me sci lab code for this.
1. Convert a few sample 24-bit RGB images to YCbCr format. Display the RGB components and YCbCr components as gray scale images. Can any observations/conclusions be drawn on the inter-channel correlations in the RGB format and the YCbCr format?
2. Subsample the chrominance components to the 4:2:0 format, and reconstruct the RGB images. Evaluate differences (if any) between original RGB images and reconstructed RGB images subjectively and objectively (check if scilab’s imresize function is useful).
3. Re-quantize an RGB image uniformly in the ratio R:G:B = 3:3:2. For comparison, use the YCbCr 4:2:0 format and quantize the components uniformly in the ratio Y:Cb:Cr = 4:2:2, and then convert back to RGB. Evaluate differences (if any) between quantized RGB images from the two methods subjectively and objectively.
1. Convert a few sample 24-bit RGB images to YCbCr format. Display the RGB components and YCbCr components as gray scale images. Can any observations/conclusions be drawn on the inter-channel correlations in the RGB format and the YCbCr format?
2. Subsample the chrominance components to the 4:2:0 format, and reconstruct the RGB images. Evaluate differences (if any) between original RGB images and reconstructed RGB images subjectively and objectively (check if scilab’s imresize function is useful).
3. Re-quantize an RGB image uniformly in the ratio R:G:B = 3:3:2. For comparison, use the YCbCr 4:2:0 format and quantize the components uniformly in the ratio Y:Cb:Cr = 4:2:2, and then convert back to RGB. Evaluate differences (if any) between quantized RGB images from the two methods subjectively and objectively.