LabSubjectExtras
P-8.   Digital Images: A/D and D/A
*.mat image files in  DigitalImageLab.zip
P-9.   Sampling, Convolution, and FIR Filtering
labdat.mat and echart.mat in  SamplingConvFiltering.zip
P-10.   Edge Detection in Images: UPC decoding
decodeUPC.p in  UPCdecodeFIR2015.zip
S-4.   Convolution and FIR Filtering