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调用crop()获取到的图片内存变大 #30

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zhangbi18 opened this issue Mar 12, 2018 · 8 comments
Open

调用crop()获取到的图片内存变大 #30

zhangbi18 opened this issue Mar 12, 2018 · 8 comments

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@zhangbi18
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本身800kb的图片裁剪以后可以增大到2M

@7va
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7va commented Mar 17, 2019

Same problem

@yundequanshi
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任何图片经过opencv都会质量变大,api会变低

@pqpo
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pqpo commented Mar 28, 2019

@yundequanshi 这个 issue 我一直没时间去调研,能大致解释一下原因吗?

@yundequanshi
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@yundequanshi 这个 issue 我一直没时间去调研,能大致解释一下原因吗?

具体原因没有详细查,测试几次用opencv 读入mat 再转成bitmap 就会质量变大,api变低

@ggoyea
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ggoyea commented Aug 14, 2020

你的图片是jpeg的,截取的图片bitmap是宽高控制的,再转成jpeg就小了

@yc139464127
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你的图片是jpeg的,截取的图片bitmap是宽高控制的,再转成jpeg就小了
@ggoyea
请问你解决了在没有对截取区域进行压缩的情况下,截取部分图片变大的问题吗

@yc139464127
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本身800kb的图片裁剪以后可以增大到2M
@zhangbi18 请问这个问题你最后解决了吗,望回复

@yundequanshi
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yundequanshi commented Oct 23, 2020 via email

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6 participants