Automatic rotation, cropping and scaling of images for printing

• US 6,456,732 B1
• Filed: 09/11/1998
• Issued: 09/24/2002
• Est. Priority Date: 09/11/1998
• Status: Expired due to Fees

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Company (HP Inc.)
• Inventors: Rudd, Michael L., Dalton, Dan L., Kimbell, Benjamin D.
• Primary Examiner(s): Patel, Jayanti K.
• Application Number:
  US09/151,892
• Time in Patent Office: 1,474 Days
• Field of Search: 382/112, 382/175, 382/176, 382/297, 382/298, 382/299, 382/276, 382/289, 358/537, 358/538, 358/401, 358/448, 358/449, 358/453, 358/464, 358/474, 358/488, 358/451, 358/1.2, 358/1.9, 358/1.18, 399/133, 399/155, 399/156, 399/160, 399/182, 399/183, 399/188, 399/190, 399/196, 399/86, 399/130, 707/526, 707/521, 427/153
• US Class Current: 382/112
• CPC Class Codes: H04N 1/2384 for fitting data onto a particular reproducing medium without modifying the image data
• CPC Class Codes: H04N 1/3875 combined with enlarging or reducing enlarging or reducing per se H04N1/393
• CPC Class Codes: H04N 1/3877 Image rotation

Abstract

A method for automatically cropping, rotating, and scaling a scanned image to ensure that a printed copy of the scanned image is the same size as the original, when possible. The method attempts to honor the default or operator designated orientation of the printed image, but will automatically rotate the image if that will eliminate unnecessary image reduction. Optimal orientation and scaling factors are automatically determined based on the target page size and the size and shape of the information of interest in the original image (not the boundaries of the original document). The operator selects a desired printed orientation (or accepts a default orientation) and selects a desired printed paper size (or accepts a default printed paper size). If an image will fit within the printable margins without rotation or cropping, the image is simply printed without modification. If the image will fit without rotation by cropping white space, then white space is cropped. If the image with all white space cropped will still not fit, the image is oriented so that long sides on the cropped image align with long sides on the printed paper. If the cropped and rotated image still does not fit, the cropped image is scaled to fit within the printable margins and the image is oriented so that long sides on the cropped image align with long sides on the printed paper.

Claims

1. A method of automatically modifying a scanned image by a system, the method comprising the following steps:

(a) determining, by the system, that the scanned image will not fit within a printable area of a printed page;

(b) determining, by the system, that the scanned image data includes margins that do not need to be printed; and

(c) deleting, by the system, data corresponding to the margins of the scanned image.

2. The method of claim 1 further comprising:

(d) determining, by the system, that the scanned image after deleting margin data in step (c) will not fit within the printable area of the printed page; and

(e) rotating, by the system, the scanned image ninety-degrees.

3. The method of claim 2 further comprising:

(f) determining, by the system, that the scanned image will not fit within the printable area of the printed page even with cropping and rotating; and

(g) scaling, by the system, the scanned image to fit within the printable area of the printed page.