Process and device for sequential image transformation

Details Process and device for sequential image transformation Process and device for sequential image transformation

1986-08-07

1989-02-28

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 54, 382 55, G06K 954

Patent

active

048093483

ABSTRACT:
The transformation applies to images defined by pixels each presenting a characteristic, such as a brightness, defined by a digital value, with the pixels being distributed according to a matrix and their relations and distances established by a neighborhood graph. All or part of the image is explored according to a predetermined exploration mode and the value of each pixel is modified as a function of the values of a set of associated pixels, assuming their value in at least the image and being located inside a sliding window related to the pixel to be transformed, identical for all pixels and constituting a structuring element. The transformed version of each pixel is immediately substituted for the preceding value in an image memory. To implement the process, a device can be utilized having a morphological opening processor, an image memory and a morphological processor with rewrite processing.

REFERENCES:
patent: 4060713 (1977-11-01), Golay
patent: 4290049 (1981-09-01), Sternberg et al.
patent: 4509195 (1985-04-01), Nadler
patent: 4558462 (1985-12-01), Horiba et al.
patent: 4641356 (1987-02-01), Sternberg
patent: 4692943 (1987-09-01), Dietzsch et al.
Golay, Marcel, "Hexagonal Parallel Patern Transformations",IEEE Trans. on Comp., vol. C-18, No. 8, Aug. 1969, pp. 733-740.
Mandeville, Jon, "Novel method for analysis of pointed circuit images", IBM J Res Develop, vol. 29, No. 1, Jan. 1985, pp. 73-86.

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