Configuring Glare Threshold in Document Reader Android SDK

Issue:

How can I set the glare threshold in the Document Reader Android SDK?

Solution:

To configure glare detection, use glaresCheckParams under DocumentReader.Instance().processParams().imageQA:

1. Enable the glare check by setting glaresCheck to true.
2. Set imgMarginPart to define the margin along the document image border where the SDK ignores glare.
3. Set maxGlaringPart to specify the maximum allowed percentage of the image area covered by glare. For example, 0.01 means 1%.

For example, in Java:

DocumentReader.Instance().processParams().imageQA.glaresCheck = true;
DocumentReader.Instance().processParams().imageQA.glaresCheckParams = new ImageQA.GlaresCheckParams();
DocumentReader.Instance().processParams().imageQA.glaresCheckParams.imgMarginPart = 0.05;
DocumentReader.Instance().processParams().imageQA.glaresCheckParams.maxGlaringPart = 0.01;

These values are examples, not documented defaults. Adjust them to suit your requirements.

For more information, see:

• Image Quality configuration for Document Reader Mobile SDK — instructions for configuring image quality checks, including glare detection.
• Android API reference for ImageQA.GlaresCheckParams — descriptions of the glare detection parameters.