My plan is this:
1. input the picture to a picture box no 1
2. load into memory
3. extract all value to a 2D array matriks
4. process the picture
5. Show the result in picture box no 2
6. End
I met a serious problem when i want to load it to memory. For a faster process i use Graphics class (i've got this trick from my friend). but later I found out that graphics wont work for PixelFormat.Format8bppIndexed.
Here's the code:
Imports System.Drawing.Imaging
Imports System.Runtime.InteropServices.Marshal
Public Class LockImage
I'm creating a Image viewer and was wondering if anyone could help me with resizing an image, and converting the image to grayscale? My knowledge of visual basics is very limited so any code snippets.I am wanting to resize the original image to a 3 x 3.
Any code for creating the pallet for a Gray scale image, to display it on a picture box? I have written the code for creating for palette for a RGB image which is as follows:
Marshal.Copy(Image_bufffer, 0, _pImg, 1024 * 1024) myBMP = New Bitmap(1024, 1024, 1024, System.Drawing.Imaging.PixelFormat.Format8bppIndexed, _pImg) pal = myBMP.Palette For i As Integer = 0 To pal.Entries.Length - 1 pal.Entries(i) = Color.FromArgb(255, i, i, i) Next myBMP.Palette = pal Picturebox1.Image = myBMP 'Show the image
But the image displayed looks dull(less brightness) than the same image viewed from ImageJ. So instead of creating pallet from color.Argb, is there any way to create palette for a gray scale image?
I am trying to develop a image processsing application that will analyse some grayscale images, the images in question are basically biological photographs(PCR GEL Photographs) that have some bands which are lighter in shades, and these bands are arranged in some pattern( Mostly linear), Till now, i had suceeded to programatically identify those bands which are distinct and clearly seperated from other band, but the band, which are close, could not be identified as seperate band.more over my algorithms fails miserably in case case of color photographs,and i am clueless for a better approach.
am trying to extract a preview image (jpg file) from a canon raw (cr2) photo file using the well known program exiftoolExtracting certain meta data works fine with this kind of code:
Private Sub GetExifData(ByRef id As ImageDataType) Dim ExifTool As New Process Dim ExifToolStartInfo As New ProcessStartInfo
I run a software development firm that develops application for Windows Vista or higher. Windows Vista has a new feature called large icons, that allows display of up to 256X256 icons.
However, if I make an image that contains this icon file, the image just assumes that it should use the 32X32 one in the ICO file, even if I scale the image up to like 500X500 (in that case, it just scales the 32X32 one up).
I would like to know if anyone could possibly write something to open a file containing hex data select data from offset: E000 to the end of the file then save it as a JPEG image.
I am new to VB in my job I need to extract image from word document for that I got some coding for that but while compiling it encounter with error.
Office Tool: MS Office 2003 Sub ImageToIncludePicture() Dim oShp As InlineShape If ActiveDocument.InlineShapes.Count <> 0 Then Dim oFSO As New Scripting.FileSystemObject [Code] ......
Dated 05/05/2012. It works properly. Before deploy the template Specify the path as per the code.
I have a small vb.net app that have a few images in an embedded resource.Is there a way I could extract one of those images to a folder from the same exe that contains the resource?, like clicking a button, selecting a folder to save it and extracting the image there
I have a small vb.net app that have a few images in an embedded resource. Is there a way I could extract one of those images to a folder from the same exe that contains the resource?, like clicking a button, selecting a folder to save it and extracting the image there.
I'm looking for a way to extract .jpg files from .wmv files at given intervals. For instance, if a clip is 1 minute long and I ask for 6 thumbnails, it will give me one every 10 seconds.Can anyone point me in the right direction for anything that may already exist for extracting single frames from video?
I can't really figure out how to extract frames and what not from an animated image stored in a picturebox. I made a post earlier similar to this matter. But now I must ask how it is that you work with GetFrame and SetActiveFrame.
I need to convert a Drawing.Bitmap to 4 bit grayscale. Is there any way to accomplish this? I've tried using Bitmap.Clone but I only get the usual infamous "Out of memory" exception. Would this be grayscale even if it managed to convert to 4 bit?
Lets say that I have a form called "frmMain". There is a button on there that will launch a Modal pop up form. Any idea on how I can make the frmMain go to a grayscale or disabled look when the modal form is shown? I'm trying to make it so the modal form "pops" a bit from the main form interface.
Public Class Form1 Dim x As Integer, y As Integer Dim img As Bitmap Dim pixelColor As Color
Public Function getpixel(ByVal x As Integer, ByVal y As Integer) As Color End Function Private Sub find_img_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles find_img.Click
[Code]...
whenever i load the image, i have to load it a second time to get the colour, or if i load a new one, i get the colour from the previous image, any ideas as to why?
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
I have a slightly more complex xml document that I don't believe or know how to extract the info that I need. From what I can tel by the GetElementbyTagName it is only good for grabbing 1 tag, with this one I need to grab the day which only appears once, the attribute of the PricingNodeHourly (hour) and then the LMP. I believe that if all I had to grab was the LMP I would have no issue using the GetElementbyTagName, however I don't believe this is the case. Perhaps I'm wrong.
I 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
