Fig. 6

Still from tag video from an Antarctic minke whale (deployment ID: bb190309-52) stitched together with tag data. The stitched video and data could be considered the final output of these tools (see Additional file 2: Video. S2, Additional file 3: Video S3). Red dashed line outlines the original video frame—the original resolution is maintained and processed sensor data is written onto the outer edge of the video. Ten minutes of data are displayed at a time, and a vertical line indicates the current time step. On import, cell 1 of MainCATSprhTool.m can use optical character recognition to read the embedded timestamp off each frame of the video (lower right corner). For this video, a processing delay in the camera firmware was later discovered. The corrected time is indicated in the data box on the left side. For most deployments the camera is set to stop recording when light levels drop below a threshold (around 100 m depth for this deployment)