This document contains two sets of questions for a unit test on digital image processing. Set A includes questions about photopic vision, sampling, the Weber ratio, separable image transforms, and drawing a vidicon camera diagram. Set B contains questions on scotopic vision, quantization, the Mach band effect, properties of the KL transform, and definitions of hue and saturation. Both sets examine the human eye, histogram equalization, the KL transform, digital image processing systems, histogram matching, the discrete Fourier transform, the singular value decomposition, and the discrete cosine transform.