Basic OCR in OpenCV

Basic OCR in OpenCV

Update!. Demo is now with CMake, the cross-platform, open-source build system. Download Now! In this tutorial we go to create a basic number OCR. It consist to classify a handwrite number into his class. To do it, we go to [...]

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GNUPLOT – 3d plot surface

GNUPLOT – 3d plot surface

For 3d plot gnuplot use command splot. splot sin(sqrt((x*x+y*y)))/sqrt(x*x+y*y) t “weaves” We can add the style pm3d to add a gradient surface texture splot sin(sqrt((x*x+y*y)))/sqrt(x*x+y*y) with pm3d t “weaves” But you can see we need more resolution, then we must [...]

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Removing .svn folders from project

A loft of times some people send me project with subversion, and when you  upload to production, sometime you don’t [...]

Jun 2, 2011     No Comments
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Segmentation and feature extraction. Contours and blob detection.

Segmentation and feature extraction. Contours and blob detection.

In BasiOCR tutorial i explain  how to preprocess, extract features and clasify a handwritten number, and a lot of people [...]

Dec 20, 2010     30 Comments
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OpenCV and CMake

OpenCV and CMake

From OpenCV 2.1 version we can use CMake to create and manage our OpenCV projects. CMake is a cross-platform and [...]

Sep 14, 2010     7 Comments
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CvFileStorage. How to save our custom structures with OpenCV functions

CvFileStorage. How to save our custom structures with OpenCV functions

In this tutorial we go to show how to save our custom structures with opencv functions. We go to imagine [...]

Feb 10, 2010     7 Comments
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Pseudocolor implementation with OpenCV.

Pseudocolor implementation with OpenCV.

In Computer Vision works in a lot of cases with gray images because there are a lot of motives. But [...]

Jan 28, 2010     8 Comments
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Neuroph, Java/Netbeans tutorial.

Neuroph is a Neural network for image recognition in java. In netbeans dzone are a netbeans/java tutorial for image recognition [...]

Jan 21, 2010     2 Comments
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Chamilo. The new e-learning platform

Today is born the new e-learning platform. Chamilo! Chamilo is a new project that opts for open source in a [...]

Jan 19, 2010     No Comments
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Segmentation & object detection by color.

Segmentation & object detection by color.

In this tutorial i go to explain how to image segmentation or detect objects byred color, in this case by [...]

Jan 16, 2010     49 Comments
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VIM how to remove ^M at the end of lines

In unix the end of line is different than other systems. More times we edit windows files and when open [...]

Jan 12, 2010     No Comments
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Compile Opencv with Mac os Snow Leopard 10.6

Today i try install OpenCv in my MacOs Snow Leopard 10.6 and have this error: error: CPU you selected does [...]

Sep 8, 2009     8 Comments
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Exuberant CTags and OpenCV with Vim. Thanks Piponazo!!

Piponazo have a wonderful spanish tutorial explianing how use Exuberant CTags in vim with a opencv as example and some [...]

Jul 16, 2009     2 Comments
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The basics of background substraction

The basics of background substraction

This tutorial explain the basics of background substraction. First of all we need define what is a background and what [...]

Mar 25, 2009     16 Comments
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BlenderOcv, “blender” can be good and powerful tool for computer vision with OpenCV

BlenderOcv, “blender” can be good and powerful tool for computer vision with OpenCV

This is the question: can be Blender a powerful tool for computer vision with OpenCv. Blender is now a powerful [...]

Dec 21, 2008     16 Comments
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Basic OCR in OpenCV

Basic OCR in OpenCV

Update!. Demo is now with CMake, the cross-platform, open-source build system. Download Now! In this tutorial we go to create [...]

Nov 20, 2008     259 Comments
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The basic patter recognition and classification with openCV

The basic patter recognition and classification with openCV

In this tutorial we go to introduce to the pattern recognitions basics in openCV. In pattern recognitions before we can [...]

Nov 14, 2008     73 Comments
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HSQLDB and java entity class most common error

Last day, i’m developing an application with hsqldb and java swing with jpa entites classes, and whe i set a [...]

Nov 11, 2008     3 Comments
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Basic Painter in OpenCV

Basic Painter in OpenCV

In this basic tutorial we go to learn some basic instructions to work in OpenCV, mouse event, trackbar controler, create [...]

Nov 7, 2008     16 Comments
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OpenCV More with cameras.

OpenCV More with cameras.

In last tutorial we learn how to get frames of our camera, now we go to learn some basic OpenCV [...]

Nov 3, 2008     81 Comments
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