Why Does My Old Thick Jacket Remain Visible After FASHN Try-On Replaces It?

Identify Which Garment Produced the Defect

A replacement image can contain several kinds of errors. The target model's original jacket collar might remain visible beneath the new blouse, or the new blouse might appear with incorrect buttons.

These symptoms are not equivalent. The first concerns incomplete removal of existing clothing. The second concerns the representation of the supplied garment. Before changing settings, compare the original model photograph, the garment reference, and the generated result.

Mark the suspicious region and identify which source it resembles. This establishes whether the documented removal-related troubleshooting branch is relevant.

Understand the Segmentation-Free Decision

Try-On v1.6 uses segmentation_free=true by default, allowing virtual try-on without a separate clothing-segmentation requirement. The official documentation advises considering false when original garments are not removed correctly.

This does not mean false always produces better clothing detail, stronger identity preservation, or higher overall quality. It addresses a specific observed failure condition.

Decision branch: If the old jacket remains around the neckline, evaluate the documented alternative. If the old garment is gone but the new shirt's buttons are wrong, investigate garment representation separately instead of assuming segmentation_free is the cause.

Illustrative Exercise: Two Different Defects

Illustrative exercise — fictional inputs, not executed FASHN requests or software tests.

Input A shows a target model wearing a bulky dark jacket. The intended replacement is a light blouse, but part of the original collar remains visible. This matches the type of removal problem for which evaluating segmentation_free=false is documented.

Input B shows a successfully removed original shirt, but the transferred blouse has an incorrect button arrangement. This is a new-garment detail problem, not evidence of incomplete old-clothing removal.

Decision branch: Evaluate the removal setting for A. For B, review the garment reference and result against the approved product details without claiming that changing segmentation_free will repair the buttons.

Establish a Three-Way Acceptance Check

Keep the original target model image, the approved garment image, and the resulting try-on image available during review.

First inspect whether unwanted remnants of the original clothing remain. Then compare the transferred garment's collar, closures, sleeves, and other required features against the approved source.

Record the failure category before changing any setting. If the removal-related branch is evaluated, compare its result with the original attempt rather than assuming the alternative is superior.

The Stable v1.6 documentation, released June 25, 2025, supports this specific diagnostic option. It does not guarantee successful removal or accurate garment details for every input.

Illustrative Exercise — Old-Garment Remnants Versus New-Garment Accuracy

These are illustrative exercise rows. Save a copy and record your own observations; the example is not an executed acceptance test.

Download review worksheet (CSV)