Using MATLAB functions in vb.net

Question

I'm new to VB.net but I have to do this for our project. I made a very simple program to call the matlab functions that I made in vb.net. This program is simple, it will just determine the width and the height of the image in the picturebox.

Here's my matlab code and compiled it using the .NET Assembly to export a .dll files:

function [width, height, third] = imageInfo(input)
inImage = imread(input);
[width, height, third] = size(inImage);
end

Here's the GUI of my program:

And here's the vb code that I made:

Imports MathWorks.MATLAB.NET.Arrays
Imports MathWorks.MATLAB.NET.Utility
Imports imageInfo

Public Class Form1
    Public myImageInfo As New imageInfoClass

    Dim imageWidth As String
    Dim imageHeight As String
    Dim result As New MWNumericArray
    Dim imagePath As String

    Private Sub btnBrowse_Click(sender As Object, e As EventArgs) Handles btnBrowse.Click
        If ofdSelectPicture.ShowDialog = DialogResult.OK Then
            pbImage.Image = Image.FromFile(ofdSelectPicture.FileName)
            imagePath = "'" & ofdSelectPicture.FileName & "'"
        End If
    End Sub

    Private Sub btnProcess_Click(sender As Object, e As EventArgs) Handles btnProcess.Click
        result = myImageInfo.imageInfo(imagePath)
        tbHeight.Text = imageHeight
        tbWidth.Text = imageWidth
    End Sub
End Class

I always got an error when running the program. I hope you can help me with this one. Thank you

Answer 1

This part here:

result = myImageInfo.imageInfo(imagePath)

imagePath needs to be the full path. You strip it out and add commas with

imagePath = "'" & ofdSelectPicture.FileName & "'"

You can try:

imagePath = ofdSelectPicture.SafeFileName