Complete training dataset of tuna and no-tuna blobs.

“Blob_ID” is a unique blob identifier (as a concatenation of survey, year, time and blob number); “Area” and “Perimeter” of the blob are in number of pixels; “BX” and “BY” refer to the upper left corner coordinates of the smallest rectangle housing the blob; width and height refer to the dimensions (in pixels) of such rectangle; “X”, “Y”, “Major”, “Minor” and “Angle” refer to the coordinates of the centroid, the size of the principal and secondary axes, as well as the angle (with respect to the horizontal axis) of the best fitting ellipse; “Circularity” is proportional to the ratio between the area and the squared perimeter, with a value of 1 representing a perfect circle and a value of 0 representing an increasingly elongated shape; Feret’s diameter, or “Feret” is the longest distance between any two points along the selection boundary, also known as maximum caliper; “FeretAngle” is the angle (0–180 degrees) of the Feret’s diameter and “MinFeret” is the minimum caliper diameter; “FeretX” and “FeretY” refer to the starting coordinates of the Feret diameter; “Aspect Ratio” (AR) is the ratio between the primary and secondary axes of the fitted ellipse; “Roundness” is the inverse of AR; “Solidity” is the ratio between the area and the convex area of the blob; and “Class” refers to the “tuna” or “no-tuna” category. (ZIP)