beafe3656fed73a0adff4cd9ad3dfd5c0b1d294b,analysis/compression_analysis/psnr.py,,main,#,13

Before Change

	//Getting image height and width
	height,width = orignal_image.shape[:2]

	orignalPixelAt = calculate(orignal_image)
	compressedPixelAt = calculate(compressed_image)

	diff = orignalPixelAt - compressedPixelAt
	error = np.sum(np.abs(diff) ** 2)

	error = error/(height*width)

	//MSR = error_sum/(height*width)
	PSNR = -(10*math.log10(error/(255*255)))

	print("PSNR value is {}".format(PSNR))

After Change

    contrast2 = cv2.imread("PSNR-example-comp-10.jpg", 1)

    // Value expected: 29.73dB
    print("-- First Test --")
    print(f"PSNR value is {psnr(original, contrast)} dB")
    
    // // Value expected: 31.53dB (Wikipedia Example)
    print("\n-- Second Test --")

Instances