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数据类型问题，累加到255就不增长了。
gray的数据类型直接由加数的类型决定，因为im2gray结果的数据类型是uint8，所以A(i,j)以及gray都是uint8类型。建议加一步转换数据类型的步骤，x=int16(A(i,j));gray=gray+x;
3 years ago | 0
| accepted
