Learn OpenCV by Examples
OpenCV Examples Blogspot. A good guide for beginners to learn OpenCV with a lot of example codes. Tutorials implementing different computer vision...
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A good guide for beginners to learn OpenCV with a lot of example codes. Tutorials implementing different computer vision algorithms are also provided.
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Learn OpenCV by Examples: Find Contour
Find Contour OpenCV implementation, findContours
Opencvexamples.blogspot.com news digest
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9 years
The Fourier Transform will decompose an image into its sinus and cosines components. It will transform an image from its spatial domain to its frequency domain. Mathematically a two dimensional images Fourier transform is:
Here f is the image value in its spatial domain and F in its frequency domain. The result of the transformation is complex numbers.... -
10 years
Crop elliptical region from image
We know that we can represent image as a matrix, and matrix can not be elliptical. So when you want to crop a elliptical area from an image, then you have to extract the elliptical region and remove rest of the information outside the ellipse. This can...
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10 years
Calculating absolute values with scaling
void convertScaleAbs(InputArray src, OutputArray dst, double alpha=1, double beta=0)
- Scales, calculates absolute values, and converts the result to 8-bit.
Parameters: -
10 years
void namedWindow(const string&winname, int flags=WINDOW_AUTOSIZE )
Parameters:
name – Name of the window in the window caption that may be used as a window identifier.
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| Web host: | Google LLC |
| Registrar: | MarkMonitor Inc. |
| Registrant: | Google LLC |
| Updated: | June 29, 2023 |
| Expires: | July 31, 2024 |
| Created: | July 31, 2000 |
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