reference_pixels_raw

The file contains the raw data of the reference pixel classification by an operator. Column description: id: unique id refering to a single reference pixel / pic: the picture where the pixel derived from originally / x, y: x- and y- coordinates of the pixles within the pixture / gvcl: One of 16 gray value classes used for the stratified sampling approach to select the reference pixels / r, g, b: the red, green and blue gray value of the pixel (8-bit) / class: classification of the pixel by a human operator