A method and electronic device for reconstructing and replicating a spectrum

Abstract

The invention discloses a method for reconstructing and duplicating a spectrum and an electronic device. The method includes the steps of: selecting a training sample set on a multi-channel image, testing the spectral reflectance of samples in the training sample set, and extracting the training sample set The response value of each channel of the sample; select the color block to be reconstructed on the multi-channel image and extract the response value of each channel of the color block to be reconstructed; The comparison of the response value of each channel of the block, select the matched target sample from the training sample set; calculate the ratio of the response value of each channel of the sample in the training sample set to the response value of each channel of the target sample; adopt the interpolation method to predict the coefficient matrix ; Multiply the spectral reflectance of the target sample by the elements of the coefficient matrix respectively to obtain a reconstructed spectrum; copy the color block to be reconstructed according to the reconstructed spectrum. In this way, the color of the copied image is closer to the color of the original image.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a method for reconstructing and duplicating a spectrum and an electronic device. Background technique [0002] Modern color science theory believes that the spectral reflectance of the surface of an object is the most realistic and objective color representation method, and the spectrum-based color representation and reproduction method can effectively solve the color distortion and metamerism existing in the traditional colorimetric-based color reproduction. problem, so as to achieve accurate acquisition of original color information. Multi-channel spectral imaging refers to obtaining multi-channel (greater than 3) image data in the visible light range by performing broadband or narrow-band resampling of the reflection spectrum of an object, and reconstructing the multi-channel response value at each pixel on the image into a spectrum. The technology of reflectivity information,...

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the prior art above, the purpose of the present invention is to provide a method for reconstructing the spectrum and copying it and an electronic device, aiming to solve the problem that the color of the copied image is not accurate enough and the color information of the details cannot be obtained

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