Extract a prompt from an image | YouThumbAI Documentation

Describe a source image as a prompt so you can create a new composition from its visual idea.

How to use it

Select the source image

Select an image in Source thumbnail.

Request the image description

Click Prompt from the reference image in the prompt improvement panel. Check the displayed credit cost before requesting the extraction.

Review the proposed prompt

Read the proposed description and adjust your intended subject if needed.

Accept the new starting point

Choose Replace only when you want to use the extracted prompt.

What happens

Replace also switches the source to Free. The extracted text becomes your prompt and the original image is no longer sent as the source for the next generation.

Action	Effect on your source
Normal Rewrite of your text	Keeps the current source
Replace after image extraction	Switches to Free
Keep the original	Discards the proposal without applying it

Example

Source idea: a presenter on the right and a glowing product on the left. After extraction: review the description, accept it if appropriate, then edit the product in the prompt to suit your video. Before Generate: check that the source tile now shows Free. You are generating from the description rather than adapting the original image.

Good to know

To keep the original source as an image constraint, do not blindly accept this change of starting point. Check the source tile after replacement. Keeping the original discards the proposal without applying it.