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Catalog step1 runtime environment step2 installation step3 configuration step4 test ZBar is an open source two-dimensional code (including barcode) decoder that recognizes barcodes/two-dimensional codes from video streams, image files, handheld scanners and video devices (such as cameras). It supp ...

Camera calibration often uses calibration boards. The common calibration methods are teacher Zhang Zhengyou's plate calibration. The common calibration boards are chessboard calibration board and disc calibration board. But in many places, when u ...

Reading Notes-opencv-Polar Coordinate Transformation Principle analysis Polar coordinate transformation is used to correct circular objects in images or to include them in circular objects. Any point (x,y) on the xoy plane of Cartesian coordinate ...

Links to the original text: https://blog.csdn.net/jiutianhe/article/details/39896931 <link href="https://csdnimg.cn/public/favicon.ico" rel="SHORTCUT ICON"> <title>Image similarity algorithm--SIFT Algorithm details - jiutianhe Co ...

Links to the original text: https://blog.csdn.net/chengyq116 Python slice operators ([],[:],[:],[:]) []: An element in the access sequence, such as str_list[3], means accessing the fourth element in the str_list sequence. [:]: Accessing ...

What can the inRange function do? Target tracking and color recognition. In the process of inRange application, it is important to find the appropriate HSV value. RGB is the most widely heard color space, which is also the natural representati ...

chart In fact, everything starts with simplicity. Of course, driverless people need artificial intelligence to know their surroundings like the palm of their hand. Everything is mastered. We need to recognize all the objects around us as much as possible. Today's AI senses the surroundings by radar or by scanning the surround ...

I. Introduction The abbreviation of Mel Frequency Cepstrum Coefficient is MFCC, which is widely used in automatic speech and speaker recognition. Mel frequency is based on the auditory characteristics of the human ear, and it has a non-linear relationship with the frequency of Hz. Mel Frequency Cepstr ...

Template Matching (TM) is to find the area most similar to template image in an image. The principle of this method is simple and fast. It can be applied to many fields such as target recognition, target tracking and so on. The corresponding function in OpenCV is matchTemplate or cvMatchTemplate (refer ...

OpenTracker Compilation and Process Interpretation After OpenCV is installed and compiled, you can run several open source projects to see how it works, and then learn the essence from the theory. Learning should first learn to apply, explore theory in application, improve innovation, rather than all ...