Publication

Abstract : Colour is the component generally used to discriminate and recognise information and it is also considered as one of the most important aspects of vision. Abundant of information contained in the colour image can be utilised for multiple purposes applications such as image analysis, object identification and extraction of powerful details. This paper proposes an optimal wavelet colour image fusion (OWCIF) algorithm for multi-modal medical images that can work with source images of any size. The proposed algorithm works with greyscale and colour images. OWCIF is composed of the logarithmic and wavelet domain of the transformed colour model of source images. The local energy fusion rule provides sharp edge details. The experiment is conducted on eight colour models with four different proposed algorithms. The evaluation of the OWCIF algorithm performance is demonstrated with the help of four sets of colour standard dataset images. The images used in this work are MRA, MR-T1, CT, PET, MRI, and SPECT. Subjective evaluation of the fusion result is carried out by the assistance of expert radiologists. The four proposed OWCIF algorithms compared with each other to identify better algorithms and colour models for the set of given images.