It is part of a training or testing dataset.
Files are often named with a "00" prefix (e.g., name-001.png ) to ensure they import correctly in 3D software (like Unity) or image viewers, maintaining proper sequential order, especially when dealing with hundreds of frames Data Set/Software Output: 001.png
Here is a detailed breakdown of what 001.png typically represents in these contexts: It is part of a training or testing dataset