Re: Find the resolution of images

No, I sent you ther way to find the correct resolution. it's a couple of
lines.

--
Bob Powell [MVP]
Visual C#, System.Drawing

Ramuseco Limited .NET consulting
http://www.ramuseco.com

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"Subbu" <venkata45@xxxxxxxxx> wrote in message
news:1166078786.470669.172340@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hi Bob
i need to find the resolution of uploaded images whether the
resolution of images is less than 300 DPI or not. is this correct way
to find the resoultion of images

Dim MyImage As System.Drawing.Image = Nothing
MyImage = System.Drawing.Image.FromFile(ImageFile)
Dim sf As SizeF = New SizeF(CSng(MyImage.Width) /
MyImage.HorizontalResolution, CSng(MyImage.Height) /
MyImage.VerticalResolution)
Dim targetpic As Integer = Nothing
Dim myimgpic As Integer = Nothing
'Target Pixels of the image to have 300 DPI
targetpic = Convert.ToInt64((sf.Width * 300) * (sf.Height *
300).ToString())
'Actual Pixels of the image
myimgpic = Convert.ToInt64((MyImage.Width *
MyImage.Height).ToString())
If targetpic = myimgpic Then
Response.write("Image is 300 DPI")
Else
Response.write("Image is not 300 DPI")
End If

i need your help Bob

Thank You
Subbu


Bob Powell [MVP] wrote:
It seems that you have a misunderstanding of what resolution actually is.
What do you really want to do?

--
Bob Powell [MVP]
Visual C#, System.Drawing

Ramuseco Limited .NET consulting
http://www.ramuseco.com

Find great Windows Forms articles in Windows Forms Tips and Tricks
http://www.bobpowell.net/tipstricks.htm

Answer those GDI+ questions with the GDI+ FAQ
http://www.bobpowell.net/faqmain.htm

All new articles provide code in C# and VB.NET.
Subscribe to the RSS feeds provided and never miss a new article.



"Subbu" <venkata45@xxxxxxxxx> wrote in message
news:1165568293.865166.303680@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
To check the resolution of images is 300 DPI or not I using this code.
Is this correct way to find the resolution of images?


Dim MyImage As System.Drawing.Image = Nothing
MyImage = System.Drawing.Image.FromFile(ImageFile)
Dim sf As SizeF = New SizeF(CSng(MyImage.Width) /
MyImage.HorizontalResolution, CSng(MyImage.Height) /
MyImage.VerticalResolution)

Dim targetpic As Integer = Nothing
Dim myimgpic As Integer = Nothing
'Target Pixels of the image to have 300 DPI
targetpic = Convert.ToInt64((sf.Width * 300) * (sf.Height *
300).ToString())
'Actual Pixels of the image
myimgpic = Convert.ToInt64((MyImage.Width * MyImage.Height).ToString())
If targetpic = myimgpic Then
Response.write("Image is 300 DPI")
Else
Response.write("Image is not 300 DPI")
End If


Can you please give me your suggestions on finding the resolution of
images 300DPI?

Thanks in advance

Thank You
Subbu




.

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