Impact Analysis of RGB Channels to the Quality of Imperceptibility in Image Steganography

In computers, color images generally have three color channels, namely red (R), green (G), and blue (B). Embedding a message in the image can change the pixel value. This change certainly adjusts the image pixel value, luminance, contrast, structure, and even image characteristics. So, it is necessary to know how much effect the pixel changes have on each channel. By learning how the effects occur, future research can find solutions to minimize the impact of changes. Based on testing of 40 standard image datasets with four different steganographic methods. The red channel has the highest sensitivity to embedding based on MSE, PSNR, and SSIM measurements. The green has better SSIM, and the blue channel has better PSNR and MSE. However, overall, the difference of MSE, PSNR, dan SSIM from the three channels is less significant