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ArrayIndexOutOfBoundsException in HybridBinarizer

See original GitHub issue

My app caught the following exception while scanning a barcode with zxing-core 3.2.1:

Caused by: java.lang.ArrayIndexOutOfBoundsException: length=460800; index=460800
at com.google.zxing.common.HybridBinarizer.calculateBlackPoints(HybridBinarizer.java:184)
at com.google.zxing.common.HybridBinarizer.getBlackMatrix(HybridBinarizer.java:79)
at com.google.zxing.BinaryBitmap.getBlackMatrix(BinaryBitmap.java:85)
at com.google.zxing.qrcode.QRCodeReader.decode(QRCodeReader.java:77)

Issue Analytics

State:
Created 7 years ago
Comments:8 (5 by maintainers)

Top GitHub Comments

1reaction

tanelihuuskonencommented, May 10, 2016

@akwizgran To avoid the index out of bounds exception, you should make sure the length of the data array is at least the height times the width of the image before calling the constructor of a luminance source. I’m afraid I don’t know enough about camera drivers to suggest a proper fix for the underlying problem.

0reactions

srowencommented, May 9, 2016

I don’t (yet) see how it changes though. It should be set correctly once at the outset.

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