What is the fine-grained topic of the following text: As mentioned in the title/name for this project, I need someone to change the format of 715 images so that they can be easily queried af...I expect this to be done within the next 2-3 hours so do not bid if you don't have the time to do it now since I need it complete by that timeframe and will give a bonus milestone payment if it's done very quickly. Only return the topic.
Changing the format of images for easy querying within a tight deadline