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Align tensor shape with image shape using element size #90

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Align tensor shape with image shape using element size #90

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11 changes: 7 additions & 4 deletions src/Bonsai.ML.Torch/OpenCVHelper.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@
using System.Collections.Generic;
using System.Linq;
using OpenCV.Net;
using TorchSharp;
using static TorchSharp.torch;

namespace Bonsai.ML.Torch
Expand Down Expand Up @@ -32,13 +33,15 @@ public static Tensor ToTensor(IplImage image, Device device)
if (image == null)
return empty([ 0, 0, 0 ]);

int height = image.Height;
int channels = image.Channels;
var width = image.WidthStep / channels;

var iplDepth = image.Depth;
var tensorType = bitDepthLookup.FirstOrDefault(x => x.Value.IplDepth == iplDepth).Key;

int height = image.Height;
int channels = image.Channels;
int elementSize = tensorType.ElementSize();
int stride = image.WidthStep / elementSize;
var width = stride / channels;

IntPtr data = image.ImageData;
ReadOnlySpan<long> dimensions = stackalloc long[] { height, width, channels };

Expand Down