Edge detection image using ARM microcontroller

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Juan Francisco Ordoñez http://orcid.org/0000-0002-8770-550X
Luis Oñate http://orcid.org/0000-0002-1323-1858


In this document is described as an image edge detector was developed, this technique is useful in a wide range of applications such as metrology, face recognition, pattern detection because it determines the border between two regions with different characteristics. the development board STM32FI-DISC was used, although this microcontroller is not designed for digital image processing (PDI) as microcontrollers Texas Instruments, Analog Device, etc. has a speed high processing and uses 32-bit program. The edge detector module uses the ARM microcontroller STmicroelectronics adding a camera to take pictures and is presented on a display thin film transistor (TFT) image where the edge detector was applied using the Sobel filter to determine movement object by a difference images. In addition, the detector implemented in Matlab filter edges and the images analyzed with the Matlab software and obtained the development board finding its likeness, being the images with a high degree of similarity buildings, geometric figures and printed circuits compared. Thus it was possible to apply an edge detection algorithm on this hardware at low cost.
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