System and method for improving the readability of text
First Claim
Patent Images
1. A method for processing display data comprising text and a background, comprising the steps of:
- (a) evaluating a combination of the text and background against at least one objective criteria to provide at least one objective value;
(b) determining whether at least one objective value exceeds a respective threshold indicative of text-background combinations that are difficult to road; and
(c) adjusting at least one of the text and the background if the at least one objective value is beyond the threshold so that the at least one objective value is within the threshold after the adjusting, said adjusting including reducing a difference in phase angle between respective colors of the text and background.
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Abstract
Display data comprising text and a background are processed. A combination of the text and background is evaluated against one or more objective criteria to provide one or more objective values. A determination is made whether the one or more objective values exceed one or more respective thresholds that are indicative of text-background combinations that are difficult to read. The text or the background or both are adjusted if any of the one or more thresholds is exceeded, so that the one or more thresholds are no longer exceeded after the adjusting.
44 Citations
30 Claims
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1. A method for processing display data comprising text and a background, comprising the steps of:
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(a) evaluating a combination of the text and background against at least one objective criteria to provide at least one objective value;
(b) determining whether at least one objective value exceeds a respective threshold indicative of text-background combinations that are difficult to road; and
(c) adjusting at least one of the text and the background if the at least one objective value is beyond the threshold so that the at least one objective value is within the threshold after the adjusting, said adjusting including reducing a difference in phase angle between respective colors of the text and background. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
receiving the display data comprising the text and background from the internet before step (a); and
displaying the adjusted display data on a television after step (c).
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5. The method of claim 4, further comprising storing the adjusted display data in a cache at a cable headend.
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6. The method of claim 1, wherein step (c) includes adjusting the text to be white or black.
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7. The method of claim 1, wherein step (c) includes increasing a difference in luminosity between the text and the background.
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8. The method of claim 7, wherein the increase in difference in luminosity is calculated to compensate for gamma effects.
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9. The method of claim 1, wherein step (c) includes reducing a level of saturation of the text or background.
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10. The method of claim 1, wherein step (c) includes adjusting a size of the text.
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11. A system for processing display data comprising text and a background, comprising:
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means for evaluating a combination of the text and background against at least one objective criteria to provide at least one objective value;
means for determining whether at least one objective value exceeds a respective threshold indicative of ten-background combinations that are difficult to read; and
means for adjusting at least one of the text and the background if the at least one objective value is beyond threshold so that the at least one objective value is within threshold after the adjusting, wherein the adjusting means reduces a difference in phase angle between respective colors of the text a background. - View Dependent Claims (12, 15, 16, 17, 18, 19, 20)
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13. The system of claim further comprising:
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means for receiving the display data comprising the text and background from the Internet; and
means for displaying the adjusted display data on a television. - View Dependent Claims (14)
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21. A computer readable medium comprising computer program code, wherein when the computer program code is executed by a processor, the processor performs a method for processing display data comprising text and a background, comprising the steps of:
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(a) evaluating a combination of the text and background against at least one objective criteria to provide at least one objective value;
(b) determining whether at least one objective value exceeds a respective threshold indicative of text-background combinations that are difficult to read; and
(c) adjusting at least one of the text and the background if the at least one objective value is beyond the threshold so that the at least one objective value is within the threshold after the adjusting, said adjusting including reducing a difference in phase angle between respective colors of the text and background. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
receiving the display data comprising the text and background from the Internet before step (a); and
displaying the adjusted display data on a television after step (c).
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24. The method of claim 23, wherein the method further comprises storing the adjusted display data in a cache at a cable headend.
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25. The computer readable medium of claim 21, wherein step (c) includes adjusting the text to be white or black.
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26. The computer readable medium of claim 21, wherein step (c) includes increasing a difference in luminosity between the text and the background.
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27. The method of claim 26, wherein the increase in difference in luminosity is calculated to compensate for gamma effects.
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28. The computer readable medium of claim 21, wherein step (c) includes reducing a level of saturation of the text or background.
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29. The computer readable medium of claim 21, wherein step (c) includes adjusting a size of the text.
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30. An electrical signal encoded with computer program code, wherein when the computer program code is executed by a processor, the processor performs a method for processing display data comprising text and a background, comprising the steps of:
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(a) evaluating a combination of the text and background against at least one objective criteria to provide at least one objective value;
(b) determining whether at least one objective value exceeds a respective threshold indicative of text-background combinations that are difficult to read; and
(c) adjusting at least one of the text and the background if the at least one objective value is beyond the threshold so that the at least one objective value is within the threshold after the adjusting, wherein the adjusting means reduces difference in phase angle between respective colors of the text and background.
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Specification