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How to recognize a blank/invisible image using java

原文 2010-07-11 15:03:26 8 1 java/ image/ image-processing/ bufferedimage/ invisible

我想知道是否有可能认识到java中的BufferedImage是一个空白（对于浏览器中的用户来说是不可见的）图像。

1 answers

You mean entirely transparent?

You could use the BufferedImage.getAlphaRaster() and traverse the pixels to check that they are all completely transparent.

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How to recognize a blank/invisible image using java

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solution1 1 2010-07-11 15:13:37

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1 2010-07-11 15:13:37