/** * Returns the kernel for finding the X derivative. * * @param type Type of gradient * @param isInteger integer or floating point kernels * @return The kernel. Can be 1D or 2D */ public static KernelBase lookupKernelX(DerivativeType type, boolean isInteger) { switch (type) { case PREWITT: return GradientPrewitt.getKernelX(isInteger); case SOBEL: return GradientSobel.getKernelX(isInteger); case THREE: return GradientThree.getKernelX(isInteger); case TWO_0: return GradientTwo0.getKernelX(isInteger); case TWO_1: return GradientTwo1.getKernelX(isInteger); } throw new IllegalArgumentException("Unknown kernel type: " + type); }