Upload And Resize Image Causes White Lines
Mar 13, 2011
When uploading images SOMETIMES I get the following lines going along the left handside of the image, and along the top, going the full width and height of the image.I'm simply uploading the image and drawing as a Bitmap and using the Graphics Class to save down.[code]
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Dec 30, 2011
I use vb.net. I am trying to do a file upload, I want the image to save to image folder, however, the image don't know appear in the directory that I indicate. If I click on "show all file", the image appear, but the image icon is blank or white like the image below show. So I click on that image and click on "include it in the project", however, it shouldn't be the case that I everytime upload an image, I need to redo that again. So how should I allow don't appear the white icon and to always appear in the upload folder when I upload a image instead of manually click on the image to include in?
This is my code
Protected Sub uploadImage()
Dim filename As String = FileUploadImg.FileName
Dim fileType As String = filename.Substring(filename.Length - 4).ToLower()
If (fileType = ".gif") Or (fileType = ".jpg") Or (fileType = ".png") Then
[Code] .....
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Jun 26, 2009
This is the code i got from This Link
I want the user to upload a picture and then resize it.............
Public Sub ResizeFromStream(ByVal ImageSavePath As String, ByVal MaxSideSize As Integer, ByVal Buffer As System.IO.Stream)
Dim intNewWidth As Integer
[Code]......
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Feb 21, 2010
show me how to resample an image before upload using the following code?
Protected Sub UploadPictureUI_ItemInserting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.FormViewInsertEventArgs) Handles UploadPictureUI.ItemInserting Dim UploadedFile As FileUpload = CType(UploadPictureUI.FindControl("UploadedFile"),FileUpload)
[Code]....
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Feb 26, 2011
So me and a friend started a project in school and we decided that i'll do most of the design part and he'll do most of the coding. I wanted to change the design on my buttons and changed the button image background and changed flatstyle to flat. Now there's this thin white line around every button instead. how can i get rid of it? Check attachment.
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Mar 4, 2009
How do I draw lines like these ones at top (underneath the white box) and bottom (above the buttons) - preferably in the GUI?
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Aug 24, 2009
How can I add white space around the image?.
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Mar 20, 2011
i need a windows program (on visual basic express) to convert a list of images to black and white. then to send it to a microcontroller via ethernet. i dont know anything about vb at the moment so simple explanations and code would be great. in the meantime i will try learning vb. but i need this program quick.
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Jul 25, 2011
i was searching google for some kind solution and i found one, i tried to implement it in my code but it doesn't work. The problem is that after resizing white images they gets gray border.Here is the link of soloution i found:It says:
This problem is occuring because you are interpolating your image data to a new size, but along the edges there are no pixels to interpolate and .NET uses black pixels for these edges by default. To fix this you need to use an ImageAttributes class in your DrawImage call....
https:[url].....
CODE 1: And this is my code WITH IMPLEMENTATION OF ImageAttributes:
Private Shared Function ResizeImageFile(ByVal imageFile As Byte(), ByVal targetSize As Integer) As Byte()
Using oldImage As System.Drawing.Image = System.Drawing.Image.FromStream(New MemoryStream(imageFile))
Dim newSize As Size = CalculateDimensions(oldImage.Size, targetSize)[code].......
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Nov 17, 2010
I have a htpc project that I am working on. The main program loads dll plugins which are basically other win forms. On each of these forms, including the main program, I use a picturebox (a double buffered picturebox) for the background image and then draw everything on it by hand. Whenever I load the form from the dll and show it, I get a weird flicker. It looks like it is the previously used double buffer. Is there any way to clear the background double buffer before the flicker? Or am I going in the wrong direction?
Here's a couple of videos of the problem:
[url]
[url]
Notice the black screen with the white lines on it or the flash of the desktop after I click "Movies." How do I get rid of that?
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Jun 20, 2009
Is there a way to convert an Image to Black and white before displaying it in a PictureBox? Or is there a way to make a PictureBox display color images in black and white?
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Feb 8, 2012
I want to create an image dot.png that is circle filled with white color.I used followin
Dim bmp As Bitmap = New Bitmap(64, 64)
Dim g As Graphics = Graphics.FromImage(bmp)
g.FillEllipse(Brushes.White, 8, 8, 48, 48)
bmp.Save("d:dot.png")
I would like to obtain following image:
[Code]...
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Jan 15, 2012
i trying to do a file upload, i want to image to save to image folder, however, the image don't know appear in the directory that i indicate if i click on "show all file", the image appear, but the image icon is blank or white like the image below show so i click on that image and click on "include it in the project" , however, it shouldnt be the case that i everytime upload an image, i need to redo that again so how should i allow don't appear the white icon and to always appear in the upload folder when i upload a image instead of manually click on the image to include in ?is it visual studio problem? does i need to click on something to make the white icon disappear?
this is my code
Protected Sub uploadImage()
Dim filename As String = FileUploadImg.FileName
Dim fileType As String = filename.Substring(filename.Length - 4).ToLower()
[code].....
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Jan 17, 2010
I hoping to find a current and simple way to do this. I'm using VWD Express 2008 and SQL Express 2008.I'm able to get the client's path to the image file using an asp:FileUpload control on the web form.
How do I upload the client's image file and display it in the web form's image control?How do I save it to the sqlserver? The image table is already set up with a "Image" data type column. Can the image be saved to the database as simply as other data types?
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May 17, 2009
Does anyone know if it is possible to resize an imagelist/listview image without repopulating the image list? I am using scroll bar to change the image size from 25 point to 256 point. When I leave the scroll bar the imagelist repopulates from the files list. This can be very slow when working with high resolution pictures. I don't want to limit the image size to 2 sizes by using large and small imagelist.
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Feb 15, 2011
find a current and simple way to do this. I'm using VWD Express 2008 and SQL Express 2008.I'm able to get the client's path to the image file using an asp:FileUpload control on the web form.How do I upload the client's image file and display it in the web form's image control?How do I save it to the sqlserver? The image table is already set up with a "Image" data type column. Can the image be saved to the database as simply as other data types?
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Mar 22, 2011
must stop the user from proceeding if the textbox is null,if the textbox has only spaces in it.i tried . trim but that doesnot work, still spaces are excapted as valid characters.
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Jun 5, 2011
Im looking for a class or code in VB.NET that can convert a black and white image in JPEG format to a grayscale TIFF format.
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Sep 1, 2009
how to resize images?
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Jul 9, 2010
how to upload 50% image only in a image in vb.net give me sample code
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Jan 27, 2010
how to upload an image from asp.net using vb.net i need a browse and upload button on aspx side. i already have an image field in the table in sql server 2008.
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Oct 6, 2011
I would like for a user to upload an image to a file in my web application. However, before being saved I want to resize the image to a specified size. I have found code on the Internet to do what I want but I am having trouble adapting to meet my needs. Here is the part I am having trouble with:
' Resize Image Before Uploading to DataBase
Dim imageToBeResized As System.Drawing.Image = System.Drawing.Image.FromStream(FileUpload1.PostedFile.InputStream)
[Code]....
Rather than upload to a database I want to save the image to a folder in my web application. The problem I have encountered is that VB won't let me save a byte() to a folder. Not sure what I can safely change to adapt for my purposes. Why does it need to be changed to a byte() in the first place?
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Aug 8, 2009
I have an app that displays images (using picturebox component). what I am trying to do now is to try to allow the user to resize the image how he wants it (scale). for this i think I need to create an instanece (bmp) clone of the selected image in the picturebox and draw it ontop of the original picture; then specifi new set of size points.I was trying to use the code below:
Graphics.FromImage(PictureBox1.Image).BeginContainer('i do not know what to do here')
I need to specifi the new size of the graphics container but I do not seem to have any clue on how to do it.
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Apr 10, 2009
How do I resize an image by the same scale? remember to mark the replies as answers if Welcome to the All-In-One Code Framework! If you have any feedback,
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Dec 19, 2011
I'm trying to find a way for saving an image to a exact size of w1024 h768 I have found a few things that allow me to save it to a percent of the images size but not to an exact size, which is how I need it.
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Jun 13, 2011
I'm trying to resize an image as it uploads, and even though the file is successfully being uploaded, the image is not being resized..
[Code].....
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Dec 5, 2010
I wrote a piece of code that grabs a fileupload, puts it into a memory stream, converts the main pic, and thumbnail pic, then saves them as jpegs, then updates the database.
Everything works fine, except one little glitch. If the DPI is above 300 then the image doesn't save right. It get's pixelated and blury.
here is the code.
Dim fileLen As Integer
# Dim myStream As System.IO.Stream
# Dim ImgContentType As String
[Code].....
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May 16, 2012
I was wondering if it was possible to make an image resize to fit a picturebox. The context is that i'm making a web browser, and I want to make there to be the favicon of the website and i'm getting the favicon via this [code]...
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Oct 31, 2009
I am new with visual basic 2008 express edition. I wanted to ask on how to resize an image in a picturebox with a set height and width.[code]...
All it does is open a file with open dialog filters. I have a set height and width for the picturebox. If i open a picture with a height and width greater than that of the picturebox, the picture box will only display a portion of the picture.
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Apr 19, 2010
I am trying to figure out how to go about my two problems i am currently having when trying to display a resized picture into a picturebox on my form.
What does it need to be in order to grab the image thats already been cropped in the pbCrop picturebox? I have the cropped image in the pbCrop picturebox and i then am trying to resize it.[code]...
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