  Image Steganography is the process of embedding text in images such that its
existence cannot be detected by Human Visual System (HVS) and is known only to
sender and receiver. This paper presents a novel approach for image
steganography using Hue-Saturation-Intensity (HSI) color space based on Least
Significant Bit (LSB). The proposed method transforms the image from RGB color
space to Hue-Saturation-Intensity (HSI) color space and then embeds secret data
inside the Intensity Plane (I-Plane) and transforms it back to RGB color model
after embedding. The said technique is evaluated by both subjective and
Objective Analysis. Experimentally it is found that the proposed method have
larger Peak Signal-to Noise Ratio (PSNR) values, good imperceptibility and
multiple security levels which shows its superiority as compared to several
existing methods
