Device and method for color recognition

Abstract

The invention discloses a color identifier, which comprises a color detector that measures color info in such a way that a light source emits detection light to the object and a sensor receives the reflected light; a data processing unit for collecting, saving data, comparing and identifying colors, and judging relative events; and an output unit for outputting the results of color identification. The invention additionally discloses a color identifying way corresponding to the color identifier: the object (e.g. a writing pen) is placed on the color identifier, when the object is taken up, the color of the object is automatically identified and the color info is fed back to an up-level unit. The invention can be applied on an electron white board. When using an electron white board to write, the color of the writing pen will be identified automatically, so that the writer can use the electron white board easily as using an ordinary blackboard or whiteboard, and can write characters in any color of the writing pen. The invention can also be used in other application needing color identification.

Description

technical field [0001] The invention relates to the field of color recognition, in particular to a color recognition device and a color recognition method. Background technique [0002] With the continuous development of electronic technology, the level of artificial intelligence imitation of electronic products is also increasing. Taking color recognition as an example, the color recognition work that has been dominated by human eyes for a long time is increasingly being replaced by corresponding electronic technology. substitute. For example: use color distinguishing technology to classify documents in the library, use color recognition devices to provide color recognition services for blind people or color blind patients, etc. [0003] In existing color recognition devices, three independent photodiodes are used to emit red, blue, and green colors to detect the color of the object to be tested, but the disadvantages are poor reliability and narrow measurement range. For...

AI Technical Summary

Problems solved by technology

The disadvantages of this invention are: 1. The photoresistor is easily affected by temperature changes, has poor reliability, and has a limited measurement range; 2. The photoresistor must be installed at the center of the three light-emitting diodes, which increases the complexity of the equipment and the difficulty of production; 3. When calibrating the ambient light source, a white object to be tested must be provided separately before calibrating, which is not feasible in actual use or the use environment is limited; 4. Because the positions of the light-emitting diode and the photoresistor are fixed, the test must Only by adjusting the position of the object under test can the reflected light be received by the photoresistor, it is difficult to control the position of the object under test during the test, which increases the difficulty of the test

The defects of this patent are: 1. The color recognition must rely on the pre-specified color, otherwise it cannot be distinguished; In the pen slot of the same color, it cannot be exchanged with pens of other colors, otherwise the recognition will be wrong

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