如何在Windows应用程序中保存调整大小的图像? [英] how to save resized image in windows application?

问题描述

先生，

我在该应用程序中开发了一个Windows应用程序，将图像加载到图片框，然后调整图像图像的大小，然后保存调整后的图像.

我写了一个调整图像大小的代码是

hi sir,

i developing one windows application in that application i load the image into picturebox and after that i resize the image image and next save the resized image.

i write a code for resize image is

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim image As Image = New Bitmap(ofd_Image.FileName)
        Dim [Delegate] As New Image.GetThumbnailImageAbort(AddressOf ThumbnailCallback)
        pb_image.Image = image.GetThumbnailImage(200, 150, [Delegate], IntPtr.Zero)
    End Sub

    Private Function ThumbnailCallback() As Boolean
        Return False
    End Function

我写一个保存图像的代码是:

and i write a code for save image is:

Dim fs As FileStream
    Dim br As BinaryReader
    Dim bw As BinaryWriter
    Dim photo() As Byte
    Dim save_ThumbimgPath As String = "D:\test.jpg"
fs = New FileStream(pb_image.ImageLocation, FileMode.Open, FileAccess.Read)
       br = New BinaryReader(fs)
       ReDim photo(fs.Length)
       photo = br.ReadBytes(fs.Length)
       br.Close()

       fs = New FileStream(save_ThumbimgPath, FileMode.Create, FileAccess.Write)
       bw = New BinaryWriter(fs)
       bw.Write(photo)
       fs.Close()
       bw.Close()
 MessageBox.Show("image saved successfully")

我的问题是如何与这2个代码块链接.表示
pb_image.ImageLocation是原始图像的位置，因此可以保存原始图像的尺寸.不保存200 X 150尺寸的图像.

请给我一个解决办法

谢谢.

my problem is how to link with these 2 block of code. means
pb_image.ImageLocation is take original image location, so it save the original image dimensions. not to save 200 X 150 dimensions of image.

Please give me a solution

Thanks.

推荐答案

您可以尝试这样的事情；

You could try something like this;

Dim bitmap as Bitmap
bitmap = New Bitmap(pb_image.Image)
bitmap.Save("D:\Test.jpg", ImageFormat.Jpeg)

希望这会有所帮助，
弗雷德里克(Fredrik)

Hope this helps,
Fredrik

这篇关于如何在Windows应用程序中保存调整大小的图像?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！