Invention Grant
US07043385B2 Method of achieving high color fidelity in a digital image capture device and a capture device incorporating same
失效
在数字图像捕获装置中实现高色彩保真度的方法和结合其的捕获装置
- Patent Title: Method of achieving high color fidelity in a digital image capture device and a capture device incorporating same
- Patent Title (中): 在数字图像捕获装置中实现高色彩保真度的方法和结合其的捕获装置
-
Application No.: US10832025Application Date: 2004-04-26
-
Publication No.: US07043385B2Publication Date: 2006-05-09
- Inventor: Michael D. Stokes
- Applicant: Michael D. Stokes
- Applicant Address: US WA Redmond
- Assignee: Microsoft Corporation
- Current Assignee: Microsoft Corporation
- Current Assignee Address: US WA Redmond
- Agency: Woodcock Washburn LLP
- Main IPC: G01D18/00
- IPC: G01D18/00 ; G01D21/00 ; G01M19/00 ; G01P21/00 ; G06F19/00

Abstract:
A method for calibration of digital image capture devices is presented. This simplified method provides a calibration based on the human visual perception of the colors input into the device using simple test targets, measurement devices, and software with a minimum of labor and expertise. This analysis may be performed using the data analysis tools of a conventional electronic spreadsheet. The method normalizes the test target data to both black and white, and converts the normalized data into the color space of the capture device through white point adaptation. The raw captured image data is also normalized to both black and white, and is regressed with the converted, normalized target data to determine the expected measurement values. These values are used to compensate the device output to achieve a high level of color fidelity. To ensure that the level of fidelity is acceptable, the CIE color difference equations are used.
Public/Granted literature
Information query