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US 7,466,875 B1Granted
Method and system for determining the legibility of text in an image
AssigneeAmazon Technologies, Inc.
InventorsHilliard Siegel, David Chick
Life of this patent
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AssigneeAmazon Technologies, Inc.
InventorsHilliard Siegel, David Chick
Estimating the term…
Legibility of text in an image of a page is determined by comparing a measure of the text in the page image with a measure of the page image itself. In one aspect, a measure of the text in the page image may be the height of a line of text, while the measure derived from the page image may be the height of the page image. A text-to-page height ratio is determined and compared to one or more thresholds for determining legibility. In another aspect of the invention, a measure of the text in a page image is obtained by measuring the word density in the page image, while the measure derived from the page image comprises compressing the page image and determining the size of the compressed image file. Legibility is then determined by comparing the measure of word density with the compressed image file size.
A computer-implemented method for determining the legibility of text in an image of a page, the method comprising:
A computer-implemented method for displaying a page image based on a determined legibility of text in the page image, the method comprising:
A multistage method for automated determination of legibility of text in an image of a page, comprising:
A computer-implemented system configured to determine the legibility of text in an image of a page, comprising a processor and a computer-readable medium containing computer-executable instructions that, when executed by the processor, cause the system to obtain an image of a page having text therein, perform text recognition on the text in the page image and produce therefrom a measure of the text, compare the measure of the text in the page image with a measure of the page image itself, and determine the legibility of the text in the page image based on the comparison of the measure of the text and the measure of the page image.
Dependencies are inferred from the claim text.