Steganography is one of the essential techniques in cryptography to transfer data securely over internet. In this technique, the digital images are used as a cover to relay sensitive information. The Least Significant Bit (LSB) method is one of the simplest ways to insert secret data into a cover image. The goal of this research is to offer a new image steganography approach based on chaotic cryptography. The selection of pixel position in the cover image is the most important security feature of the proposed approach. This chaotic based steganography method uses pseudo-random numbers generated through logistic map to select pixels in different size of images. The data has been embedded in the least significant bits of Red (3), Green (2) and Blue (3) positions of random pixels of image. This proposed adaptive stegano technique is validated for the quality of algorithms using the Peak Signal Noise Ratio (PSNR) and Mean Square Error (MSE) measurements.