tesseract

I am using Swift 3 to build a mobile app that allows the user to take a picture and run Tesseract OCR over the resulting image. However, I've been trying to increase the quality of scan and it doesn't seem to be working much. I've segmented the photo into a more "zoomed in" region that I want to recognize and even tried making it black and white. Are there any strategies for "enhancing" or optimizing the picture quality/size so that Tesseract can recognize it better? Thanks! tesseract.image = // the camera photo here tesseract.recognize() print(tesseract.recognizedText) I got these errors and

I'm compiling tesseract-ocr-3.01 in MinGW, and I'm getting this error ambigs.cpp:31:22: fatal error: strtok_r.h: No such file or directory This is the code where the error is: #ifdef WIN32 #ifndef __GNUC__ #define strtok_r strtok_s #else #include "strtok_r.h" #endif /* __GNUC__ */ #endif /* WIN32 */ Edit I found this feature request to add strtok_r.h to MinGW . From the comments there: strtok_r() is an optional POSIX function, required only for implementations which support POSIX threads. MinGW does not support POSIX threads; therefore, I don't think that this function has any place in a base

I am facing problem to get the skew angle from image .I am using tesseract api for image processing. I have searched a lot on web but no appropriate solution found. I have used following code: Pix test=ReadFile.readBitmap(bitmap.createBitmap(400, 400, Config.ARGB_8888)); float angle=Skew.findSkew(test); from above code I get angle value 0.0. Please help me to resolve this problem or show the right direction to resolve this problem. TessBaseAPI baseApi = new TessBaseAPI(); baseApi.setImage(bitmap); Pix test = baseApi.getThresholdedImage(); float a = Skew.findSkew(test); Sometimes get 0.0,

I am using tesseract to perform OCR on screengrabs. I have an app using a tkinter window leveraging self.after in the initialization of my class to perform constant image scrapes and update label, etc values in the tkinter window. I have searched for multiple days and can't find any specific examples how to leverage CREATE_NO_WINDOW with Python3.6 on a Windows platform calling tesseract with pytesseract. This is related to this question: How can I hide the console window when I run tesseract with pytesser I have only been programming Python for 2 weeks and don't understand what/how to perform

I need a programmatic way of taking a scanned image (let's assume PNG or any other convenient image format) and breaking it up into many smaller images. The scanned image is a grid, and the boxes of the grid will always be the same size and in the same relative location. Because the image is scanned, they are not necessarily in the same absolute location. In each box is a character, ideally I'd like to save the character as its own image file, without any of the box border. I prefer PHP and ImageMagick, which I think will be the right combination of tools. However, I'm flexible if there's a

It seems like this is probably a common issue with ocr. Is there a way to tell tesseract that my 1's are actually 1's? Hopefully without changing my 7's into 1's in the process. Note: these are scanned documents and I have no idea what font was used. if "tesseract" is trainable, try to train it on the font manually. It should solve the problem. There is another possible solution. Make a small valdiation module after "tesseracting". For all 1s and 7s, double check them using intensity based method. For example try to find corners(feature points) on it and apply KLT with 1 and 7 template and see

I am trying to implement Tesseract into my android project but am getting a crash when trying to complete the OCR. Here is how I'm setting up Tesseract: TessBaseAPI baseApi = new TessBaseAPI(); baseApi.setDebug(true); baseApi.init(imagePath, "eng"); baseApi.setImage(bitmap); String recognizedText = baseApi.getUTF8Text(); baseApi.end(); This is how I'm setting up the image information to pass into the TesseractAPI: destination = new File(Environment.getExternalStorageDirectory(), name + ".png"); imagePath = destination.getAbsolutePath(); String name = dateToString(new Date(),"yyyy-MM-dd-hh-mm

I'm using Tesseract OCR 3.01 in my iOS application, it shows 90% accuracy for my data when I pick an image from my phone’s library. But if I use the same image from the camera, it is showing jumbled letters. I followed this tutorial , kindly guide me if something can be done to make sure it works from camera as it works for gallery images. Almost for sure the problem is "orientation". Apple tends to create images in one bit map form - the image bits are laid out as if the camera was on its side with the volume buttons top and right. Images that you see which appear taller than wider are still