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EURASIP Journal on Advances in Signal Processing
Fig. 1 | EURASIP Journal on Advances in Signal Processing

Fig. 1

From: Spatial and spectral regularization to discriminate tissues using multispectral photoacoustic imaging

Fig. 1

The spatio-spectral mean-shift principle. Pixel spatial features at the first iteration with the R S parameter (left) and spectral profiles of three pixels with the R λ parameter (right). The red pixel is the reference pixel. Although the green and blue pixels are both in the spatial area of the reference pixel, only the green pixel is used to update the features of the reference. Indeed, the spectral profile of the blue pixel is not close enough to the spectral profile of the reference sample (by at least one wavelength; the blue and red pixels are separated by a distance greater than R λ )

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