Method and system for analog/digital image simplification and stylization

摘要

A computer program product includes instructions for a processor to perform a method of improving image structure and coherence, and/or for simplification/stylization. The method includes inputting the image, by: scanning the image; image capture using a camera; and/or image creation using a computer. Multi-channel images are converted into a single-channel image, which is separated into a first image component—the high spatial frequencies, and a second component image—the low spatial frequencies. The first and second component images are each formed by filtering to remove frequencies outside of respective upper and lower threshold frequencies. A gain multiplier is applied to the filtered first and second component images to control detail amplification. The first and second component images are each blurred at the respective upper and lower threshold frequencies. An improved stylized composite image results by subtracting the gain multiplied first component image from the gain multiplied second component image.

主权项

1. A computer program product, for use in a method of manipulating the spatial frequencies of a multichannel image, said computer program product comprising a non-transitory computer-readable storage medium storing instructions that, when executed on a processor, cause the processor to manipulate the image according to said method, said method comprising:
inputting the multichannel image; converting the multichannel image into a single channel image; separating the single channel image into a first component image comprising the high spatial frequencies, and a second component image comprising the low spatial frequencies; filtering said first component image for filtering out frequencies above an upper high-spatial-frequency threshold, and for filtering out frequencies below a lower high-spatial-frequency threshold; blurring said filtered first component image at each of said upper high-spatial-frequency threshold and said lower high-spatial-frequency threshold; filtering said second component image for filtering out frequencies above an upper low-spatial-frequency threshold, and for filtering out frequencies below a lower low-spatial-frequency threshold; and producing a composite image by subtracting the filtered and blurred first component image from the filtered second component image.