Out of Memory Exception (working with Images)

Question

Hello All,

I am facing a strange issue while dealing with big images ( size approx 48 mb, a Tiff file having 175 pages.). Now when I am trying to convert the Imagefile into the bitmap and doing some operation, randomly system will throw "Out of memory exception"

Below is my code snippet. I am getting error (randomly) on line " pages = New Bitmap(lorigionalFile) " where LoriginalFile is an ImageType and Page is Bitmap.

 

So Please guide me what to do to remove this type of error or stoping the memory leakage.

 

----------------------------------------------------------------------------------------------------------

            Dim lorigionalFile As System.Drawing.Image
            Dim SaveEncodeParam As EncoderParameter 'Encoder parameter to create multi page image
            Dim EncoderParams As EncoderParameters = New EncoderParameters(1) 'Encoder parameter Array
            Dim pages As Bitmap 'Used to save image page
            Dim NextPage As Bitmap 'Used to save next image page
            Dim PageNumber As Integer
            Lfr = File.Open(FileName, FileMode.Open, FileAccess.ReadWrite)

            lorigionalFile = System.Drawing.Image.FromStream(Lfr)

            ''Get number of page count in image
            PageNumber = getPageNumber(lorigionalFile)

            'set first page as active frame
            cintPagenumber = PageNumber

            'loop to every page of attached document
            For i As Integer = 0 To PageNumber - 1
                'set active from as per loop variable
                lorigionalFile.SelectActiveFrame(FrameDimension.Page, i)

''Will get errow in below line, when there are other programs running in background

                pages = New Bitmap(lorigionalFile)

''''

                   'image store in Image
                    CalImageContainer.Add(pages)
                    'make a copy on image container
                    CalImageContainerCopy.Add(pages)

            Next
            Lfr.Close()

        End Try

 

 

 

Thanks

Pratik vohera

Answer 1

Hi,

I think the main problemis a design thing. What I understood:

You got a compressen file with a 175 Bitmaps in it. And you are creating these 175 Bitmaps in Memory now (Where they will be stored without compression!). So you are using a lot of memory to store these files and yes: 175 Bitmaps consume a lot of memory, so it is very likely that you run out of memory.

And also another hint: Bitmaps implement IDisposable - so when you no longer need a Bitmap, please call Dispose().

With kind regards,

Konrad

Answer 2

the size of tiff can be an issue

---

Mark Answered, if it solves your query
Rohit Arora