  This work proposes Steganographic technique for hiding multiple images in a
color image based on DWT and DCT. The cover image is decomposed into three
separate color planes namely R, G and B. Individual planes are decomposed into
subbands using DWT. DCT is applied in HH component of each plane. Secret images
are dispersed among the selected DCT coefficients using a pseudo random
sequence and a Session key. Secret images are extracted using the session key
and the size of the images from the planer decomposed stego image. In this
approach the stego image generated is of acceptable level of imperceptibility
and distortion compared to the cover image and the overall security is high.
