tesseract does not recognize grey colored fonts in the images..

[Yogesh Sanchihar]

If we have a text not black, but light greyish. tesseract does not recognize it.

Any solutions to this problem.

Have attached images of the sample bill.

Suppose I want to extract Base Fare

Base Fare  - Rs 500

But Since Base Fare is light greyish. Tesseract does not recognize it at all.

[Yogesh Sanchihar]

okay, James.. Than you for your response. I would try.

On Tue, Jul 31, 2018 at 5:04 PM, James Q <james.qu...@taina.tech> wrote:

It could be that a threshold operation is taking place at a lower brightness than you grey text. Try binarizing the image with a high threshold value befo sending to tesseract (e.g.200) this should make all the text black.

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[chandra churh chatterjee]

Binarize the image and it might give a good solution.

Chandra Churh Chatterjee

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[Yogesh Sanchihar]

Namastey! okay, I will try this.. Could you help me how to build an image preprocessing pipeline? or atleast sequential steps that I should use to build one.

On Wed, Aug 1, 2018 at 1:04 PM, chandra churh chatterjee <chandrachurh...@gmail.com> wrote:

Binarize the image and it might give a good solution.

Chandra Churh Chatterjee

On Sat, Jul 28, 2018, 8:30 PM Yogesh Sanchihar <yogesh.yogesh.sanchihar9@gmail.com> wrote:

If we have a text not black, but light greyish. tesseract does not recognize it.

Any solutions to this problem.

Have attached images of the sample bill.

Suppose I want to extract Base Fare

Base Fare  - Rs 500

But Since Base Fare is light greyish. Tesseract does not recognize it at all.

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