Generation of 3D look-up tables for image processing devices
First Claim
1. An apparatus for automatically generating a three-dimensional look-up table (3D LUT) representing image processing, comprising:
- a digital image input for receiving digital image data;
a test signal generator configured to generate digital test patterns;
an image processor configured to perform color conversion on received image data and generate converted digital image data;
a first switch coupled for providing either the digital image data from the digital image input or the digital test patterns from the test signal generator to the image processor;
a red/green/blue (RGB) value measurement circuit coupled to the image processor and configured to measure RGB values from the converted digital image data; and
a digital image output coupled to the image processor for providing the converted digital image data to an external display.
4 Assignments
0 Petitions
Accused Products
Abstract
An image processor is disclosed which is capable of automatically generating a series of test signals, running the test signals through its image processing software and hardware, and capturing the resulting output signals to automatically generate a 3D LUT that represents most or all of the imaging processing steps being performed by the image processor. No external equipment is required to generate the 3D LUT. In other embodiments, the image processor may be connected to an external image processing device, and the image processor can then automatically generate a series of test signals, run those test signals through the external image processing device, and capture the resulting output signals to automatically generate a 3D LUT that represents most of all of the image processing steps being performed by the external image processing device.
-
Citations
20 Claims
-
1. An apparatus for automatically generating a three-dimensional look-up table (3D LUT) representing image processing, comprising:
-
a digital image input for receiving digital image data; a test signal generator configured to generate digital test patterns; an image processor configured to perform color conversion on received image data and generate converted digital image data; a first switch coupled for providing either the digital image data from the digital image input or the digital test patterns from the test signal generator to the image processor; a red/green/blue (RGB) value measurement circuit coupled to the image processor and configured to measure RGB values from the converted digital image data; and a digital image output coupled to the image processor for providing the converted digital image data to an external display. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method for automatically generating a three-dimensional look-up table (3D LUT) representing image processing, comprising:
-
generating digital test patterns within a unitary image processing apparatus; performing color conversion on the digital test patterns and generating converted digital image data; measuring red/green/blue (RGB) values from the converted digital image data within the unitary image processing apparatus; and generating a 3D LUT based on the measured RGB values. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. An apparatus for automatically generating a three-dimensional look-up table (3D LUT) representing image processing, comprising:
-
means for generating digital test patterns within a unitary image processing apparatus; means for performing color conversion on the digital test patterns and generating converted digital image data; means for measuring red/green/blue (RGB) values from the converted digital image data within the unitary image processing apparatus; and means for generating a 3D LUT based on the measured RGB values.
-
Specification