Scilab is an open source software for numerical computation and programming that provides help and support for domains including wireless sensor networks, wireless communication, data mining, signal processing, and image processing. It also offers major applications support for digital signal processing tasks such as adaptive filtering, waveform quantization and compression, linear and circular convolution, and multirate signal processing. Additionally, Scilab provides programming help for notable research areas including computation offloading frameworks, lossy image compression using SVD coding, vehicle detection and classification using audio visual cues, multi-temporal fusion of CT images for liver cancer diagnosis, Gaussian filtering of compressively sensed images, and region-based multi-focus image fusion using spectral parameter variance.