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初恋的回忆--- 体会双核的优势
单CPU计算,8-10秒。
- LetterPatternCode=Map[
- ImageData[Binarize[Rasterize[ImageCrop[Image[Graphics[Text@Style[#,50,FontFamily-> "Helvetica"]],"Bit"]],ImageSize->{18,25}]]]&,Union[CharacterRange["a","z"],CharacterRange["A","Z"]]];//AbsoluteTiming
复制代码 双核并行计算 4 秒。
- LetterPatternCode=ParallelMap[
- ImageData[Binarize[Rasterize[ImageCrop[Image[Graphics[Text@Style[#,50,FontFamily-> "Helvetica"]],"Bit"]],ImageSize->{18,25}]]]&,Union[CharacterRange["a","z"],CharacterRange["A","Z"]]];//AbsoluteTiming
复制代码 |
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