gusucode.com > vision工具箱matlab源码程序 > vision/+vision/+internal/+detector/+fast/cropImage.m
function [I_u8c, expandedROI] = cropImage(I_u8, params) %#codegen imageSize = size(I_u8); if params.usingROI % If an ROI has been defined, we expand it by 2 pixels on the top, % bottom, left, and right borders, so only valid pixels are used to % compute the corners. expandedROI = vision.internal.detector.expandROI(imageSize, ... params.ROI, 2); % Crop the image within the expanded ROI. I_u8c = vision.internal.detector.cropImage(I_u8, expandedROI); else expandedROI = coder.nullcopy(zeros(1,4,'like',params.ROI)); I_u8c = I_u8; end