Component

mahotas.convolve(f, weights, mode='reflect', cval=0.0, out={new array})

Convolution of f and weights

Convolution is performed in doubles to avoid over/underflow, but the result is then cast to f.dtype. This conversion may result in over/underflow when using small integer types or unsigned types (if the output is negative). Converting to a floating point representation avoids this issue:

c = convolve(f.astype(float), kernel)

This plugin can be used for inferring spatial interactions between patterns of spot-like objects in images or between coordinates read from a file. 

This plugin can be used to add synthetic Poisson-distributed noise to an image in order to simulate shot noise of various signal-to-noise ratios. It can be used to generate benchmark images in order to assess the accuracy and robustness of image processing algorithms as a function of the noise level present in images.