Mat | opencv mat frame
NextTutorial:Howtoscanimages,lookuptablesandtimemeasurementwithOpenCV[1]GoalWehavemultiplewaystoacquiredigitalimagesfromtherealworld:digitalcameras,scanners,computedtomography,andmagneticresonanceimagingtonameafew.Ineverycasewhatwe(humans)seeareimages.However,whentransformingthistoourdigitaldeviceswhatwerecordarenumericalvaluesforeachofthepointsoftheimage.Forexampleintheaboveimageyoucanseethatthemirrorofthecarisnothingmorethanamatrixcontainingalltheintensityvaluesofthepixelpoints.Howwegetand...
Next Tutorial: How to scan images, lookup tables and time measurement with OpenCV[1]
GoalWe have multiple ways to acquire digital images from the real world: digital cameras, scanners, computed tomography, and magnetic resonance imaging to name a few. In every case what we (humans) see are images. However, when transforming this to our digital devices what we record are numerical values for each of the points of the image.
For example in the above image you can see that the mirror of the car is nothing more than a matrix containing all the intensity values of the pixel points. How we get and store the pixels values may vary according to our needs, but in the end all images inside a computer world may be reduced to numerical matrices and other information describing the matrix itself. OpenCV is a computer vision library whose main focus is to process and manipulate this information. Therefore, the first thing you need to be familiar with is how OpenCV stores and han...