kling-image-expand

Image expansion uses generative fill to extend the canvas upward, downward, left, or right, creating believable surrounding content. This allows aspect-ratio correction and composition optimization without cropping the original subject.

Yes, you can use raw Base64 image input for canvas resizing alongside URL inputs. The system enforces specific image size and dimension limits, applies four directional expansion ratios, and uses asynchronous polling to handle the generative fill task.

Adapting a square image for social media cover assets involves directional canvas expansion to generate new surrounding content. This adjusts the aspect ratio and optimizes the composition without awkward cropping of the original frame.

Asynchronous polling ensures image expansion task completion by monitoring the generative fill process across four directional expansion ratios. Once processing finishes, the system handles storage transfer to preserve the expanded results for downstream use.

Limitations for poster resizing include enforced image size and dimension limits on input sources, whether URL or raw Base64. Users must also account for asynchronous polling delays during task completion before the final expanded asset is ready for storage transfer.

You need aspect-ratio correction for web and mobile assets when an original image frame is too tight for a banner or header layout. Image expansion generates new surrounding visual content to fit the required dimensions without cropping the main subject.