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POimage resize and crop on upload asp,net
 

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  1. POimage resize and crop on upload asp,net
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    <p>i have the below code, i am looking to crop and resize at the same time, i use the below function, i am looking to have 150 x 150 px image size cropped centered, but the below function always if the image width > height, the output image will be 200x150, but i need it to be 150x150 px,, any help</p> <pre><code>Function SavetoDisk(FU As FileUpload, ByVal para_Save_to_Path As String, ByVal maxHeight As Integer, ByVal maxWidth As Integer, para_FileExt As String, anchor As AnchorPosition) Using image As Image = image.FromStream(FU.PostedFile.InputStream) Dim sourceWidth As Integer = image.Width Dim sourceHeight As Integer = image.Height Dim sourceX As Integer = 0 Dim sourceY As Integer = 0 Dim destX As Integer = 0 Dim destY As Integer = 0 Dim nPercent As Decimal = 0 Dim nPercentW As Decimal = 0 Dim nPercentH As Decimal = 0 nPercentW = (Convert.ToSingle(maxWidth) / Convert.ToSingle(sourceWidth)) nPercentH = (Convert.ToSingle(maxHeight) / Convert.ToSingle(sourceHeight)) If (nPercentH &lt; nPercentW) Then nPercent = nPercentW Select Case (anchor) Case AnchorPosition.Top destY = 0 Case AnchorPosition.Bottom destY = Convert.ToInt32(maxHeight - (sourceHeight * nPercent)) Case Else destY = Convert.ToInt32((maxHeight - (sourceHeight * nPercent)) / 2) End Select Else nPercent = nPercentH Select Case (anchor) Case AnchorPosition.Left destX = 0 Case AnchorPosition.Right destX = Convert.ToInt32((maxWidth - (sourceWidth * nPercent))) Case Else destX = Convert.ToInt32(((maxWidth - (sourceWidth * nPercent)) / 2)) End Select End If Dim destWidth As Integer = Convert.ToInt32((sourceWidth * nPercent)) Dim destHeight As Integer = Convert.ToInt32((sourceHeight * nPercent)) Using thumbnailBitmap As Bitmap = New Bitmap(destWidth, destHeight) Using thumbnailGraph As Graphics = Graphics.FromImage(thumbnailBitmap) thumbnailGraph.CompositingQuality = CompositingQuality.HighQuality thumbnailGraph.SmoothingMode = SmoothingMode.HighQuality thumbnailGraph.InterpolationMode = InterpolationMode.HighQualityBicubic Dim imageRectangle As Rectangle = New Rectangle(0, 0, destHeight, destHeight) thumbnailGraph.DrawImage(image, New Rectangle(destX, destY, destWidth, destHeight), New Rectangle(sourceX, sourceY, sourceWidth, sourceHeight), GraphicsUnit.Pixel) Dim jpegCodec As ImageCodecInfo = Findcodecinfo("JPEG") If Not IsNothing(jpegCodec) Then Dim encoderParameters As EncoderParameters = New EncoderParameters(1) encoderParameters.Param(0) = New EncoderParameter(Encoder.Quality, 80) thumbnailBitmap.Save(para_Save_to_Path, jpegCodec, encoderParameters) Else thumbnailBitmap.Save(para_Save_to_Path, ImageFormat.Jpeg) End If End Using End Using End Using End Function </code></pre>
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