System and method for providing high performance image magnification in a web browser
First Claim
Patent Images
1. A computer system for providing high performance image magnification in a Web browser comprising:
- means of acquiring and storing an ultra high resolution image;
means for converting the ultra high resolution image to a browser-supported format;
means for creating a second, reduced resolution image from the ultra high resolution image for screen display;
means for converting the reduced resolution image to a browser-supported format;
means for loading the converted ultra high resolution and reduced resolution images into a browser memory;
means for displaying the converted reduced resolution image on a browser screen;
an input device for pointing to a location on the browser screen;
means responsive to the input device for determining a portion of the converted ultra high resolution image to overlay on the browser screen; and
means for displaying the portion of the converted ultra high resolution image on the browser screen at the location pointed to by the pointing device.
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Abstract
High resolution details of an image can be accessed through manipulation of a cursor (or data points) on a reduced resolution display. The coordinates of the cursor on the reduced resolution image reference coordinates of a stored high resolution image. As the cursor moves about the reduced resolution image a portion of the high resolution image can be constantly displayed. The portion displayed depends upon cursor coordinates. The portion displayed may also be zoomed in or out.
14 Citations
10 Claims
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1. A computer system for providing high performance image magnification in a Web browser comprising:
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means of acquiring and storing an ultra high resolution image;
means for converting the ultra high resolution image to a browser-supported format;
means for creating a second, reduced resolution image from the ultra high resolution image for screen display;
means for converting the reduced resolution image to a browser-supported format;
means for loading the converted ultra high resolution and reduced resolution images into a browser memory;
means for displaying the converted reduced resolution image on a browser screen;
an input device for pointing to a location on the browser screen;
means responsive to the input device for determining a portion of the converted ultra high resolution image to overlay on the browser screen; and
means for displaying the portion of the converted ultra high resolution image on the browser screen at the location pointed to by the pointing device. - View Dependent Claims (2, 3, 4, 5)
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6. A computer implemented method for providing high performance image magnification in a Web browser comprising the steps of:
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acquiring and storing an ultra high resolution image;
converting the ultra high resolution image to a browser-supported format;
creating a second, reduced resolution image from the ultra high resolution image;
converting the reduced resolution image to a browser-supported format;
loading the converted ultra high resolution and reduced resolution images into a browser memory;
displaying the converted reduced resolution image on a browser screen;
receiving position information from an input device pointing to a location on the browser screen;
determining from the position information a portion of the converted ultra high resolution image to overlay on the browser screen; and
displaying the portion of the converted ultra high resolution image on the browser screen at the location pointed to by the pointing device. - View Dependent Claims (7, 8, 9, 10)
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Specification