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EnoxSoftware avatar EnoxSoftware commented on June 13, 2024

JPG files are loaded into RGB24 format, PNG files are loaded into ARGB32 format.

https://docs.unity3d.com/ScriptReference/ImageConversion.LoadImage.html

The jpg files are read in RGB24 format, so I changed the code. It worked fine in my environment.
OpenCVForUnity 2.5.7
Unity 2019.4.31f

            byte[] tempByteArray = ReadJpgFile(Utils.getFilePath("OpenCVForUnity/core/pca_test1.jpg"));

            int jpgWidth = 800;
            int jpgHeihgt = 600;

            Texture2D rawVideoTexturesRGBA;

            Texture2D tempVideoTexturesRGB;

            rawVideoTexturesRGBA = new Texture2D(jpgWidth, jpgHeihgt, TextureFormat.RGBA32, false);

            tempVideoTexturesRGB = new Texture2D(jpgWidth, jpgHeihgt, TextureFormat.RGB24, false);

            ImageConversion.LoadImage(tempVideoTexturesRGB, tempByteArray);

            Mat imgMat = new Mat(tempVideoTexturesRGB.height, tempVideoTexturesRGB.width, CvType.CV_8UC4);

            OpenCVForUnity.UnityUtils.Utils.texture2DToMat(tempVideoTexturesRGB, imgMat);

            OpenCVForUnity.UnityUtils.Utils.matToTexture2D(imgMat, rawVideoTexturesRGBA);


        static private byte[] ReadJpgFile(string path)
        {
            var fs = new System.IO.FileStream(path, System.IO.FileMode.Open);
            var br = new System.IO.BinaryReader(fs);
            byte[] bytes = br.ReadBytes((int)br.BaseStream.Length);
            br.Close();
            return bytes;
        }

pca_test1.jpg
pca_test1

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mattycorbett avatar mattycorbett commented on June 13, 2024

Thank you!

from opencvforunity.

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