Patent ID: 8390887

Claim:
A method for preparing an image for printing on a printing device having a particular MTF in order to compensate for the MTF, said method comprising the steps of: adaptively compensating for the printer MTF, by applying MTF compensation in dependence of a first variable; calculating N compensated images for N values of the first variable; and for each value of a second variable, the first variable being dependent of the second variable, determining a compensated value for the image according to the actual value of the first variable and the calculated N compensated images, wherein the first variable is a spatially local mean, the second variable is a spatial position in the image and a compensated image is a compensated High-pass image, and wherein the step of calculating N compensated High-pass images for N local mean values further comprises the steps of: for each value of the local means, transforming the image from a spatial domain to a frequency domain; dividing each obtained image in the frequency domain by a factor for the MTF, and transforming the images back to the spatial domain.