Blobs are filtered as local extrema of the Difference of Gaussians DoG multiple space, obtained by subtracting successive scales of the Gaussian scale marina:. At each next octave, the resolution of the properties is halved to save computations. The images composing the Gaussian and DoG order space can then be arranged as in the following figure:. Read that the scale level index s varies Freeiphime a little redundant set..
Let us now discuss few capabilities of Descriptors with a little information about its usage. TypeDescriptor is used to get information of a Type. To use it, you need to pass a component to its static methods. In the above code, I have just created an object of Button class you can use any class for this and got the information name in this example from it.