The easiest way to learn OpenCV is to buy & read the book “Learning OpenCV” from O’Reilly. Otherwise you can follow these instructions depending on your C/C++ compiler. This webpage explains how to setup OpenCV v2.1.0. There is a newer version of OpenCV available (v2.2.0), but it

The post Introduction to OpenCV appeared first on 1nine.com.

The task of “Face Recognition”, where you want a computer to figure out who a person is from a photo of them, is a very difficult function to do well. But in some cases such as robotics, it may not be so important to figure

The post How to detect the color of a person’s shirt appeared first on 1nine.com.

Good web presentation about AArch64: http://people.linaro.org/~rikuvoipio/aarch64-talk/#/ All AArch64 instructions are 32-bits long (instead of some 16-bit and some 32-bit). ARMv8 64-bit mode has doubled the register widths (64-bit instead of 32-bit) but also doubled the number of general CPU registers (32 instead of 16). When only

The post ARM’s 64-bit mode (AArch64) ARMv8) appeared first on 1nine.com.

OpenCV was originally created by Intel to demonstrate how fast Intel CPUs can perform, and therefore the speed performance of OpenCV was of crucial importance. However, OpenCV has recently changed from a low-level image processing C library built for maximum speed, to a higher-level computer

The post Do all versions of OpenCV run at the same speed? appeared first on 1nine.com.

Here is a basic graphing library to allow plotting graphs on the screen or into an image using OpenCV. This can be very useful to view the contents of a numerical array, such as during testing of an algorithm. This “library” is just a collection

The post Draw graphs using OpenCV appeared first on 1nine.com.

The page will show you how to do some common image transformations in OpenCV, such as rotating an image, cropping an image or resizing an image without changing its aspect ratio. Rotating an Image in OpenCV The function below will rotate an image using cvGetQuadrangleSubPix(),

The post Rotating or Resizing an Image in OpenCV appeared first on 1nine.com.

The RGB color format can represent any standard color or brightness using a combination of Red, Green and Blue components. For efficiency, this is typically stored as a 24-bit number using 8-bits for each color component (0 to 255) so that for example, White is

The post Color Conversions appeared first on 1nine.com.

OpenCV is a great library for creating Computer Vision software using state-of-the-art techniques, and is freely available for Windows, Linux, Mac and even Android & iPhone. OpenCV was originally designed by Intel in 1999 to show how fast Intel CPUs can run. So most of

The post OpenCV appeared first on 1nine.com.