I know the use of colormatrix. but this work on the whole image. is there any way to work with colormatrix only a part of image rather than whole image.
eg i want to give the brightness of only border area of image.
i am working with c#.
i have a image with four squares evenly spaced out. I want a picturebox's image to be one of the squares at a time so it's like a animation except it's only one image.
View 7 RepliesDoes anyone know How can I for example make if user clicks one one half of the picture box it will msgbox left side and vice versa?
View 2 RepliesI have an image in a picturebox that changes, and the background of the image is ls always the same. is there a way I can change the background of the image? Here is the picture, or at least one of them.
The white background behind the character is what I need to remove. How can I replace certain colors of pixels with another color?
I'd like to verify if an image control has an image loaded . If it does , I want to unload that image (and load no image) , but if the image control has no image loaded , I want to load an image . Is it possible ?
If ImageMY.Image.Equals(Nothing) Then
ImageMY.Image = System.Drawing.Image.FromFile("C:ImageBlaBlaBla.jpg")
Else
[code].....
How I can compare a gif image I have with a certain part of the screen. For example lets say I have the gif for the Close window button (top right hand of the window incase your confused). I would want the program to check the top right hand of the screen in the exact coordinates and see if the pixels match. if so return a variable true.
View 7 RepliesIt is possible to find the points of a part of image example, do I have a photography of a castle where there is a flag, manage to find where is the flag positioned to runtime?
View 4 RepliesI want to be able to:
1) save the screen as an image
2) use this image and search for a smaller image inside of it (pixel sequence)
Basically, I need the program to detect when an image comes onto the screen.NOT a pixel color at a certain coordinate, it is similar to this but instead of one pixel, it should detect multiple ones.is there any way I can put the image I want to detect in a picturebox, and it will go look at that image and keep checking to see if it exists on the screen?I have it working for pixel detection (only 1 pixel), but it isn't very reliable as there could be many other instances of this color on the screen.
I've got an unusual request. I have an image that will always have bounds that are of Base 2 (2, 4, 8, 16, 32, 64,...) in both dimensions. I need to know if there's a way that I can get a small 16 x 16 square (or smaller, still of base 2) portion of the image. I'm planning on overlaying a grid on this image that way the user can select a portion of it and then the program creates a dynamic image from the selected grid square to use. Is this possible to do? I did a quick search on the Image class and didn't see anything that stood out. Note: This is for framework 2.0, but not picky about jumping to 4.0 if necessary.
View 8 RepliesI have a form which shows a graph which was made in Microsoft Chart control 6.0...
I have placed a option in the menubar which will export the graph made to an image file...
Can some one tell how to export the graph part of the form as a image (any format will do)...
I was thinking of taking a screenshot and saving it but i cudnt get the controls in vb to take a screenshot of a specified area on the form.
Toolstrip1 has toolstripdropdownbutton1 and some dropdown items are added with this.Now, Iam looking to set the color or marigin part of image dispalyed in toolstripmenuitem.Anyone can show me the details?
View 6 RepliesI'm doing a school project with arrays and I want it so that I input a part number and it outputs a image, price, and name for the part. I need to accomplish this using the array. We've only ever done arrays where you input a part number and one thing comes back out, not multiple.
View 1 RepliesI need to take the image and clip a sliver in the middle and repeat it to make it like the second attachment. (so its 320px wide)i dont need to save the result... I need to cut it in half... then use drawimg to draw the left half, then the center "slice" then the left half.
View 4 RepliesI am developing a web sit using web parts in asp.net and c#. I have one problem, when i drag the web part from one web part zone to another, the image of the web part is still there at the web part zone, utill i drop it at the destination. i want to make that image of web part invisible at drag and drop time.
View 1 Repliesi want a random image from just a part of the resource folder to be shown in a picturebox . i have this code but it for the hole of the resource folder
Dim prng As New Random 'should be in namespace
'get list of all resources
Dim rs As System.Resources.ResourceSet = [code]......
In my project, I have a form with a background pic that I like, but unfortunately, I also have a ListView on that form which covers most of the picture. Now, is there a way to find the part of the background image concealed by the ListView, and then display it as a background image of the ListView at decreased opacity? You know, like a vague image.Just one more thing, setting the form's transparency key to the background color of the ListView is not an option.
View 39 RepliesI created a new cursor (it works properly, I tried it in windows 7) but is not working for me in the program.I took the Windows cursor (aero_helpsel_xl, from C:WindowsCursors) and it appears to me the same error.i use with this code:
Me.Cursor = New Cursor("Patch..")
The problem say:: "{"Image format is not valid. Image file may be corrupted.
Parameter name: stream "}"
edit: I realized what the problem ... It can read only cur files with 24-bit color and lower - but it shows only two colors: black and white.
I have an app that loads a jpg into a picyure box, then updates exif data in exifworks classThe problem is that when I save the image(from image used for picture box) or class (to save exif data) then try to delete, sometimes I get success, others it won't allow delet I have gone to the trouble of using gc.collect, do events, put the delete in a timer & wait for the delete before continuing & still get the problem
View 7 RepliesWith a button click event, how do I make a picture box image property switch to a random image from the resources folder?
View 1 Repliesi want to save image in ms access 2000 database & i want retrive it in a crystal report in vb.net 2005
View 8 RepliesI've been searching for hours tonight searching existing posts, other websites and all i can find are examples of how to capture a image from a webcam.Does anyone have any code that simple talks to the camera device via WIA, and then saves every image found on the device to a hard drive?I found this code below. Credit i cant tell you as i have a bunch of different flavors of code, but this only saves the file as a tmp file, and not the actual image file i expected after selecting?
Imports System.Drawing
Imports System.Runtime.InteropServices
Imports WIALib
[code].....
In VB6 you could BITBLT things around before refreshing the screen. In .NET, I'm aware of DrawImage, but that can only be done on a paint event rather than before anything gets painted. The issue I have is, I need to open several files with image data in them and then build a bigger image with those smaller images. Before I could open them, BITBLT them to a Buffer. As far as I can tell .NET offers no way to do this as the only function I've been able to find (DrawImage) only works within the paint event. Is there still a way to do this in VS08 or no?
View 6 RepliesI am using ITextSharp and am trying to set the alignment of an image.
In C# (as per all the examples) it is:
code:
I cannot work out the equivalent of the "|" in VB.
i am creating a table in vb.net code (htmltable) with htmltablerows and htmltablecell. I gave on image control but thatr control cant have the .imageurl property, which i need cause i have a handler image.ashx which brings image from the database.
heres' the code -
TD = New HtmlTableCell
Dim img As New HtmlImage()
img.ID = "image_" & rd("ID")
[code]....
on the last line, "img.ImageUrl" i get this error -'ImageUrl' is not a member of 'System.Web.UI.HtmlControls.HtmlImage'how do i fix this?
I need a code that will load text, the correct image to match it and the command for each image. what i want to do is make a program that will download a swf and an image into to folders. then at startup the program will load all the swf and images and put the images into a listview so when you click on the image for the swf file it will give the link to the swf so it can be loaded.
View 1 RepliesI am "weeks new" to visual basic 2008 but I was hoping that someone might tell me how I can open an image in whatever type of "visible" graphics window (always positioned at: x=0 y=0); move to some "definable position" of interest x=(n) y=(n); change the brightness of that "individual pixel" by some "definable means of measure" from its original state; and save the new image as a separate image file?
View 4 RepliesHere is the code:
'Add images column to DataTable.
ds.Tables(0).Columns.Add("Image", GetType(BitmapImage))
'Create array of image paths.
Dim currentDir As String
[code]....
I have a Picturebox and a two Buttons on my Form. On click of one of the buttons I want to change the image in the picture box at runtime.
This works fine when I give the location of the image (the full path ) on my computer - but then of course it will not work if I use the solution on a different computer .
So I have made a folder named "Pics" inside my application and added two images into it.
How do I get to this local folder in the following code?
Picturebox1.image = system.drawing.image.fromfile (??? )
instead of the usual,
Picturebox1.image = system.drawing.image.fromfile ("C:UsersMyName My PicturesMyPicture.jpg" )
How to retrieve a binary image from a database using vb.net and insert the image into a GridView.
This is my DB
image (id as integer , img as varbinary(max))
I'm trying to update pictures boxes with images of controls stored in an imagelist owned by a control. The images stored in the control.imagelist do not showup in the picturebox. I'm working on simplifying the code to post, but for now could use help.If I store the image in a member variable owned bythe control it woks fine.Something to do with persistance of images in control owned imagelist? [code]
View 2 Replies