ToBitmap fails if not contiguous because of Broadcast mismatch
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- C#
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Description
When using the public static unsafe Bitmap ToBitmap(this NDArray nd, int width, int height, PixelFormat format = PixelFormat.DontCare) passing a NDArray of shape (1, x, y, 3) fails due to broadcast mismatch at (LeftShape, RightShape) = DefaultEngine.Broadcast(lhs.Shape, rhs.Shape); due to broadcasting with (x*y*3) and (1, x, y, 3) the work around is to clone the NDArray so that it is continues or change the shape of the function so that it has a correct shape.
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Research direction
Start at the public ToBitmap(NDArray nd, int width, int height, PixelFormat format) entry point and inspect the DefaultEngine.Broadcast call mentioned in the report. Reproduce it with an NDArray shaped (1, x, y, 3), then verify that conversion no longer fails with a broadcast mismatch for non-contiguous input.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- csharp
- Domain
- computer-graphics
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100