Least Significant Bit Comparison between 1-bit and 2-bit Insertion

Steganography can be used to secure secret messages. Steganography works by hiding valuable information in an accommodating medium. The media used is an image. In inserting information into a media, there are several techniques that can be used. The technique used is Least Significant Bit (LSB). It works by manipulating the last bit on each pixel. This bit will be replaced by a row of bits in the information. Each character in the information consists of 8 bits. And each bit will be inserted in each pixel in the image. A character needs 8 pixels to store information. The pixel sequence is RGBRGBRG. This study discusses insertion comparisons if carried out with 1-bit and 2-bit. Both image results will be tested for feasibility. MSE and PSNR will be applied and compared to the original image. MSE and PSNR test results say that 1-bit LSB is superior in terms of the image while 2-bit LSB is superior in terms of information size. For small information, it is better to use 1-bit LSB and large information will be inserted using 2-bit LSB.