Reve adds per-region color control
Image-generation startup Reve now lets users set exact colors for individual regions of an image, a feature trained with a self-supervised method that needs no human color annotation.
Reve announced a feature called Color that lets users pick a region of an image and set its exact color. The company calls it "precise regional color reference" and claims it is the first such feature in image generation and editing.
Users can pick a hue from the image with an eyedropper, type in a hex code, or choose a color with a slider. Reve suggests several uses: keeping brand colors consistent across assets, showing a product in each of its colorways without a reshoot, setting the shade of walls, fabrics and finishes, and working from a fixed palette across a series. A single region can be recolored while the rest of the image stays the same. The feature is available now at reve.com.
Color builds on Reve's layout system, which the company says it bet on two years ago as "an interpretable, controllable, codeable interface for images." Until now, a layout described regions by their position and a text description. Color adds an exact appearance value to each region.
Reve says training happened in two stages. First, an extractor works in a perceptual color space, where colors that are close in the space also look close to the eye. It groups each region's pixels into a small palette of representative swatches, and that palette becomes an extra input for the region alongside its text description. Second, the model learns the reverse: given layouts with these palettes, it generates images whose colors match.
Because the extractor labels every training image automatically, the training signal is self-supervised and needs no human annotation. Reve did not publish benchmarks, accuracy figures or details about the model.