US 2006/0214973 A1Published application

Method for monitoring image calibration

AssigneeEastman Kodak Company

InventorCraig Iannazzi

Life of this patent

Estimating the term…

Loading patent…

Abstract

A method for monitoring and adjusting the calibration for an image processing apparatus entails imaging a calibration target to create an image using the image processing apparatus and scanning the image into host software to create an exposure calibration curve. Control strips are imaged to create control strip images on order to obtain a calibrated density history for the control strips using the control strip images. The control strip images are scanned into the host software to obtain a scanned density history for each control strip and thereby form a density history for the control strips. A deviation history is calculated by comparing the scanned density history to the calibrated density history for each control strip. The deviation history is monitored to ensure that the deviation history is within the operating specifications for the image processing apparatus.

Claims16

Dependent claims

A method for monitoring and adjusting the calibration for an image processing apparatus, wherein the method comprises the steps of:

a. imaging a calibration target on a layered assembly using the image processing apparatus to create an image, wherein the layered assembly comprises a thermal donor on a thermal receiver;
b. scanning the image into host software on the image processing apparatus, thereby forming an exposure calibration curve;
c. forming a schedule for the calibration target;
d. imaging a plurality of control strips using the image processing apparatus to create a plurality of control strip images, wherein each control strip comprises at least one calibrated density on a proof, and obtaining a calibrated density history for the control strips using the control strip images;
e. scanning control strip images into the host software on the image processing apparatus to obtain a scanned density history for each control strip, thereby forming a density history for the control strips;
f. calculating a deviation history by comparing the scanned density history to the calibrated density history for each control strip;
and
g. monitoring the deviation history, wherein when the deviation history is outside operating specifications for the image processing apparatus, selecting a course of action selected from the group consisting of updating the schedule, adjusting the exposure calibration curve, and combinations thereof.

5 more elements

A method for monitoring the calibration for an image processing apparatus, wherein the method comprises the steps of:

a. imaging a first calibration target on a first layered assembly using the image processing apparatus to create a first calibration image;
b. scanning the first calibration image into host software on the image processing apparatus, thereby forming an exposure calibration curve;
c. forming a first schedule for imaging the first calibration target;
d. forming a second schedule for imaging a plurality of calibration targets;
e. imaging the calibration targets on a plurality of layered assemblies using the image processing apparatus to create a plurality of calibration images and a calibrated density history, wherein each layered assembly comprises a thermal donor on a thermal receiver;
f. scanning the calibration images into the host software on the image processing apparatus forming a scanned density history;
g. calculating a deviation history by comparing the scanned density history to the calibrated density history;
and
h. monitoring the deviation history, wherein when the deviation history is outside operating specifications for the image processing apparatus, selecting a course of action selected from the group consisting of updating the first schedule, updating the second schedule, adjusting the exposure calibration curve, and combinations thereof.

6 more elements

Dependencies are inferred from the claim text.