Generate Only One Side to Avoid Ghosting and Distortion especially with inpaint

[KolaKater]

As Nagadomi pointed out, inpainting is only applied to regions defined by the inpainting mask. Common issues include:

1.Misalignment between the mask and edge correction.

2.Mask not covering the intended area.

3.Foreground or background pixels leaking outside the mask due to undersized masking.

In practice, a 2D image already represents either the left or right view of a 3D SBS image. For simplicity, let's assume it's the left view. When converting 2D images to left-right SBS format, artifacts such as distorted lines and ghosting often appear.

Here are three suggestions to improve the conversion process:

1.Use the Original Image as the Left View This avoids unnecessary processing, doubles the conversion speed, and helps prevent distortion.

2.Generate Only the Right View with Enhanced Masking Apply a slightly larger mask on the right side of the foreground—especially around blurred borders—to reduce ghosting and shadow artifacts.

3.Develop a Dedicated Inpainting Model for the Right View A specialized model could better handle depth estimation and edge blending, improving overall quality.

Observation: Artifacts typically occur on the generated right image, especially along the RIGHT-side borders between foreground and background. The original (left) image always remains clean and unaffected.
here are some examples(the left side are the original 2D images):

[nagadomi]

You can specify right for Synthetic view option.

[KolaKater]

You can specify right for Synthetic view option.

Yes, you already made this option for us. It would be perfect in the program for the right side to have automaticlly Enhanced Masking Apply a slightly larger mask on the right side of the foreground—especially around blurred borders—to reduce ghosting and shadow artifacts

[nagadomi]

There is already Mask dilation option. inner (foreground side) and outer(background side).

Also, what do the upper row and lower row represent?
If there is a difference in artifact patterns between the right and left views, there might be a bug.
The inpainting model is trained only on the right view, and for the left view the image is flipped and then inpainted.

[KolaKater]

There is already Mask dilation option. inner (foreground side) and outer(background side).

Also, what do the upper row and lower row represent? If there is a difference in artifact patterns between the right and left views, there might be a bug. The inpainting model is trained only on the right view, and for the left view the image is flipped and then inpainted.

sorry about misunderstanding. The upper row is without edge expansion, the lower row is with edge expansion.

I try my best to explain, what I mean is not exactly the same like the Mask dilation option.
the original image is preserved unchanged on the left side. Only the right-side image is generated, but the generated image introduces ghosting and shadow artifacts, especially around the right edges.
To avoid and reduce these artifacts, I propose slightly expanding the blurred right edges of the foreground further to the right. The amount of expansion should be adaptive — based on the degree of blur. More blurred edges can tolerate and benefit from greater extension.
This expansion maybe can be applied directly on the depth map? It would be more effective.

[nagadomi]

If you wish to dilate the foreground edge in RGB, that is not possible. It would cause inconsistencies in object size between the left and right views, resulting in artifacts in VR/3D. Dilation of the foreground edge in depthmap is already performed by EdgeFix (--edge-dilation) option.