Accuracy assessment matrix for the eleven candidate algorithms for the training tile (20AUG05_R3C2) and the test tile (20AUG05_R2C3).

Observer #1 visually identified a total of 32 whales in 20AUG05_R3C2 and 190 in 20AUG05_R2C3, while observer #2 detected 34 and 193 whales respectively. The total number of identified whales (total count) are those identified by both observers. The time required to identify the whales in each image is included in the last column (average time for the candidate algorithms).