Class CMappedImage
Defined in File CMappedImage.h
Class Documentation
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class CMappedImage
This class encapsulates a MRPT Image and allows the sampling of individual pixels with sub-pixel accuracy and with a change of coordinates (eg, meters). Only work with graylevels (for convenience), so if a color image is passed it’ll be passed first to grayscale.
See also
Public Functions
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CMappedImage(CImage::Ptr img, double x0 = 0, double x1 = -1, double y0 = 0, double y1 = -1, TInterpolationMethod method = IMG_INTERP_LINEAR)
Constructor: Must pass an image (as a smart pointer) and the coordinates of the border
- Parameters:
img – The image. A copy of the smart pointer is kept internally to this object.
x0 – Coordinate X of the left side (default: 0)
x1 – Coordinate X of the right side (or -1 to IMAGE_WIDTH-1)
y0 – Coordinate Y of the top side (default: 0)
y1 – Coordinate Y of the bottom side (or -1 to IMAGE_HEIGHT-1)
method – The interpolation method: It can be imNEAREST, imBILINEAR or imBICUBIC.
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void changeCoordinates(double x0, double x1, double y0, double y1)
Changes the coordinates of the image (see constructor for the meaning)
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double getPixel(double x, double y) const
Returns the interpolated pixel at the coordinates (x,y), in the range [0,255] (grayscale) If the point is out of the image, 0 is returned.
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CMappedImage(CImage::Ptr img, double x0 = 0, double x1 = -1, double y0 = 0, double y1 = -1, TInterpolationMethod method = IMG_INTERP_LINEAR)