Andrew J Gallagher

US Patent:

6400848, Jun 4, 2002

Filed:

Mar 30, 1999

Appl. No.:

09/281574

Inventors:

Andrew C. Gallagher - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G06T 500

US Classification:

382254, 382275, 382154, 382199, 382286

Abstract:

A method for modifying an apparent perspective of a digital image representing a perspective projection of a scene, the method comprises the steps of locating a line in the digital image; computing a correction term based on parameters of the located line which said correction term is related to the perspective of the digital image relative to the scene; and resampling the digital image based on the correction term for creating a processed image.

US Patent:

6408103, Jun 18, 2002

Filed:

Dec 31, 1998

Appl. No.:

09/224007

Inventors:

Andrew C. Gallagher - Rochester NY
Edward B. Gindele - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G06K 940

US Classification:

382260, 382263, 382264, 382167, 358520

Abstract:

A method for preserving spatial detail and color content is performed when adjusting the tone scale of a digital color image. This method comprises the steps of receiving a digital color image, providing a tone scale function for adjusting the tone scale of the digital color image; providing a spatial filter for adjusting the tone scale of the digital color image; transforming the digital color image into a luminance signal and chrominance signals; using the tone scale function, the spatial filter, and the luminance signal to produce an enhanced luminance signal; and using the tone scale function, the spatial filter, the luminance signal, and the chrominance signals to produce enhanced chrominance signals.

US Patent:

6438264, Aug 20, 2002

Filed:

Dec 31, 1998

Appl. No.:

09/224028

Inventors:

Andrew C. Gallagher - Rochester NY
Edward B. Gindele - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G06K 900

US Classification:

382167, 358 19, 358518, 358504, 382162

Abstract:

A method of adjustment of the color saturation characteristics of a digital color image is performed in order to compensate for an applied luminance tone scale function. This method comprises of the steps of receiving a tone scale function, calculating a local slope of the tone scale function for each pixel of the digital color image, calculating a color saturation signal from the digital color image, and adjusting the color saturation signal of the digital color image for each of the pixels based on the calculated local slope.

US Patent:

6453075, Sep 17, 2002

Filed:

Dec 31, 1998

Appl. No.:

09/223881

Inventors:

Andrew C. Gallagher - Rochester NY
Edward B. Gindele - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G06K 940

US Classification:

382260, 382263, 382264, 382162, 358518

Abstract:

A method for preserving spatial detail when adjusting the tone scale of a digital color image, the method comprises receiving a digital color image; providing a tone scale function for adjusting the tone scale of the digital color image; generating a luminance signal from the digital color image; using the tone scale function and the control signal applied to each color channel of the digital color image to produce an enhanced digital color image.

US Patent:

6476865, Nov 5, 2002

Filed:

Mar 7, 2001

Appl. No.:

09/800875

Inventors:

Edward B. Gindele - Rochestre NY
Andrew C. Gallagher - Brockport NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

H04N 314

US Classification:

348277, 348273

Abstract:

An image sensing device having an array of light-sensitive elements, including: a first type of element sensitive to a spectral region corresponding to luminance; a second type of element sensitive primarily to red light; a third type of element sensitive primarily to green light; and a fourth type of element sensitive primarily to blue light, the four types of elements occurring in repeating patterns.

US Patent:

6549678, Apr 15, 2003

Filed:

Jan 29, 1999

Appl. No.:

09/240080

Inventors:

Edward B. Gindele - Rochester NY
Andrew Gallagher - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G06F 1568

US Classification:

382254, 382162

Abstract:

A method for adjusting the color and tonal characteristics of a digital image, the method comprises receiving a digital image having two or more digital image channels; (b) separating each digital image channel into two signals; (c) modifying one of the signals with a multidimensional transform for adjusting the color and tonal characteristics of the digital image; and (d) combining the output of (c) with the remaining signal for producing an enhanced digital image.

US Patent:

6577378, Jun 10, 2003

Filed:

Aug 22, 2000

Appl. No.:

09/643544

Inventors:

Andrew C. Gallagher - Rochester NY
Edward B. Gindele - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03B 2772

US Classification:

355 35, 355 71, 358302

Abstract:

An apparatus and method for compensating for light falloff in a film master frame of a photographic image. A masking unit is positioned between the master frame and copy material in an optical printer. The masking unit may be an LCD panel. A controller calculates a light falloff compensation function to produce a light falloff correction parameter that is used to control the transmittance values of a plurality of pixels in the masking unit. When a photographic copy is made, the masking function serves to counteract light falloff that existed in the master frame to produce a copy with reduced effect from light falloff. Control and selection of the light falloff compensation function can be based on a number of factors related to the camera type, lens type, film type, flash type, and other factors that created the light falloff on the master frame. In addition, one or more of the master frames from a roll of film may be scanned to generate data to drive the light falloff compensation function. The data may be averaged to improve performance of the system.

US Patent:

6580835, Jun 17, 2003

Filed:

Jun 2, 1999

Appl. No.:

09/324239

Inventors:

Andrew C. Gallagher - Rochester NY
Edward B. Gindele - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G06K 940

US Classification:

382274, 358475

Abstract:

A method for utilizing a predetermined tone scale conversion to enhance a digital image comprised of a plurality of image pixels, each image pixel characterized by an image value, includes the steps of providing image pixels corresponding to a region of the image; identifying a statistical characteristic of the image pixels in the region; normalizing the predetermined tone scale conversion for the statistical characteristic in order to generate a normalized tone scale conversion; and performing the normalized tone scale conversion on a central pixel of the region in order to generate an enhanced output pixel. In one embodiment, a scaling function is generated based upon the statistical parameter and a first intermediate value is generated from application of the scaling function to the input pixel value. Then a second intermediate value is generated from the application of the first intermediate value to the tone scale function, and an enhanced pixel value is then obtained from application of the inverse of the scaling function to the second intermediate value.