how can i add a page onto a tiff and save the bitmap?
VB
Dim img As System.Drawing.Image
img = Image.FromFile(imgPath)
Dim fd As System.Drawing.Imaging.FrameDimension = New
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Can any one share some code with me that would explain the process of storing a bitmap data in tiff wrapped JPEG format.
View 2 RepliesCurrently I have a third party control that generates a Metafile. I can save the .wmf file to disk with out issue. The problem is how do I render the Metafile as a Tiff file. Currently I have the following code to get my metafile and save it.
Dim mf As Metafile = page.GetImage(TXTextControl.Page.PageContent.All)
Dim enhMetafileHandle As IntPtr = mf.GetHenhmetafile()
Dim h As IntPtr
Dim bufferSize As UInteger = GetEnhMetaFileBits(enhMetafileHandle, 0, h)
Dim buffer(CInt(bufferSize)) As Byte
[Code] .....
I've tried all sort of Image and Graphic calls and just can't save the meta file as a .tiff. I even tried to create a new bitmap and draw the metafile onto it. I always end up with a GDI exception being thrown.
How to compress a bitmap before saving it into tiff format?
share some code with me that will compress the contents of a bitmap before saving into image format.I have the following code:
Dim image As BitmapSource = decoder.Frames(i)
Dim thebitmap As Bitmap = BitmapFromSource(image)
Dim eps As Imaging.EncoderParameters = New Imaging.EncoderParameters(1)
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I need to compress the contents of "thebitma" before saving it into jpg format.
The code below reads an Icon from an .ico file, converts the Icon read to a Bitmap and saves the bitmap using:
Bitmap.Save(PathA)
Then does:
PanelShowWrittenIconA.BackgroundImage = New Bitmap(PathA)
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I have a bunch of images that I want to save as 1 tiff file.
I can get it to read just fine. But It is not picking up frames. I think it has to do with the encoderParamters.[code]...
I'm developing a program that will show multipage tiff in a picturebox using vb.
View 9 RepliesI have built a simple image viewer in .NET and have the requirement to display multi-frame TIFF images in the browser. Presently, I have a (ashx) handler setup to stream back JPEGs that are co-mingled in the same database as the multi-frame TIFF's and it's worth mentioning that this handler will also return the first frame of the TIFF file in its current state. In the VB.NET code below (part of the handler) I am able to identify if a TIFF file has multiple frames and I started attempting to stitch the frames together but have not had any success yet. Has anyone returned multi-frame TIFF's using a similar approach? Note: I used the How to open a multi-frame TIFF image as a reference when developing the code below.
context.Response.Cache.SetCacheability(HttpCacheability.NoCache)
context.Response.Cache.SetNoStore()
context.Response.Cache.SetExpires(DateTime.MinValue)
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We are using vb.net to write tiff images. After the image is first scanned into the system, we read it into bitmap memory, then we write it back out as a tif and pass in arguments that tell it what to put in the header. When we look at the original file, the header shows the "Subfile type" as "single page of multi-page image". But we noticed that after the file is written, the header now shows the "subfile type" as "Full-resolution image". We do not currently pass any argument in that tells it to do that.Is there a way to pass an argument into the function that writes the tiff file to tell it we want a single-page tiff and NOT a full resolution image? For some reason, our customer's tiff reader is not accurately reading some of these files and we believe it might be the cause of this.
View 11 RepliesWhen looking at an array of bytes from a stream for a multi-page tiff document, can you determine where one page stops and another begins? I want to take a multi page document, let's say 50 pages and allow a user to pick different pages of that to make other muti-page documents.
View 1 RepliesOk what's happening is I'm pulling in a Tiff file that can have multiple pages. I selected the first frame, draw a stamp image to it and save it as a different file name.When I do this, it is only saving the first page of the tiff file. How do I get all of the pages to save?
vb
NetDMS.exportDocumentImageWithAnnotations(_workflow, disn, "C:JCEmailFld", "emailDocument" + currEmailDoc.ToString)
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I have a conceptually simple task:Read in two TIFF imagesOverlay the second image onto the firstSave as a new TIFFOne catch: The first TIFF is 40,000 pixels by 0,000 pixels, 8-bit indexed color. Yes, I need a lot of memory. I'd like to get to that later. (The second TIFF is also 8-bit.)I've found GDI+ (System.Drawing) to be incredibly restrictive. I cannot create a Graphics object from an 8-bit indexed color bitmap, for one thing (something that woul trying to learn WPF (System.Windows.Media.Imaging). I've been following several examples from MSDN and looking all around but nothing is working. Here's what I have so far:
Dim workingDir As String = "C: emp"
Dim baseimg As String = "base.tif"
Dim overlayimg As String = "overlay.tif"
[code]....
I need sample vb.net code to save single windows form as many page and reload the page whenever i call that page...
View 1 Repliesprints out the tiff tags associated with a tiff file?
View 5 RepliesI'm trying to add an bitmap image in memory to a page using a System.Windows.Forms.PictureBox object, but it's not working. Here is my
HTML
Dim bytes As SqlBytes = reader.GetSqlBytes(0)
Dim image As Bitmap = New Bitmap(bytes.Stream)
Dim picBox As PictureBox = New PictureBox()
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I've checked through most of the nfo I can find in forums about scaling a picture, but still haven't stumbled over the answer. ALl I want to do is print my form on the printer. The problem is I don't know what monitor the form is being dispayed on and how big or small the user has madt it. I just want it to fit on the printer when it is printed. Basically I want it to, "Fit the Page".
I thought I could do it by using a rectangle and adjusting the size of the rectangle to fit the 8.5 x 11 paper, All this seems to do is magnify my form on the printed page and clips the sides and bottom of the form instead of making it "fit" on the page. What am I doing wrong?
Here is what I am using: Public MyForm As New Bitmap(Me.Width, Me.Height) Private Sub ToolStripButton3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripButton3.Click
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i want open image (png), re size and save it as png-8 with transparent i can re size and save it but this not as png-8 format !!i use this but receive this exeption
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I need to save Bitmap object loaded from image file (.png, .jpeg, .bmp) and save it as an icon (.ico) to a separate file.
First I tried saving Bitmap object to a file with Icon ImageFormat:
using System.Drawing;
Bitmap bmp = (Bitmap)pictureBox1.Image;
bmp.Save(@"C:icon.ico", Imaging.ImageFormat.Icon);
This one fails, as the icon produced is not in a proper format and it cannot be used as an icon.
Next one was to get HIcon from Bitmap and save it to a file:
using System.Drawing;
using System.IO;
StreamWriter iconWriter = new StreamWriter(@"C:icon.ico");
[Code]....
This one does not do the job too. Although icon file is properly written, it has only 16 colors and a limited width and height.
I'd like to be able to write icons with custom width and height that would preserve colors from the original image. Is this possible to achive in .NET?
I'm having an issue with some code I'm trying to write that takes a screenshot of the current screen and saves it to a bitmap file on my local PC.
vb.net
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles Button1.Click
[code].....
I have created an VB.NET page to record views for ads and will call page from img src.
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
Dim insert_number As Integer = 0
Dim ad_id As Integer = 0
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I've created a new bitmap object and am shading some pixels inside it black using the setpixel function. At the end I do:
myBlankBitmap.Save("D:3Didea_out.bmp")
Great. Except the bitmap that is saved is 32bit and won't open properly. I want it to be 8 bit. I can't find any options to change the bitdepth.
I knew everything I needed to save an image, so I type in my code, and yet another error pops up. Here's the bit of code:
screenshot.Save(CaptureMain.picLocation.ToString, Imaging.ImageFormat.Bmp, "Screenshot")
And, the error's kind of lengthly...
Error1Overload resolution failed because no accessible 'Save' can be called with these arguments:
'Public Sub Save(stream As System.IO.Stream, encoder As System.Drawing.Imaging.ImageCodecInfo, encoderParams As System.Drawing.Imaging.EncoderParameters)': Value of type 'String' cannot be converted to 'System.IO.Stream'.
'Public Sub Save(stream As System.IO.Stream, encoder As System.Drawing.Imaging.ImageCodecInfo, encoderParams As System.Drawing.Imaging.EncoderParameters)': Value of type
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The variable 'screenshot' is a bitmap.
I'm having an issue with some code I'm trying to write that takes a screenshot of the current screen and saves it to a bitmap file on my local PC.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim tempScreenshot = New Bitmap(Screen.PrimaryScreen.Bounds.Width,
[code].....
I created a paint type program for signatures, and now I would like to save my canvas as either a jpeg, bitmap, or gif file, but I am unsure how to go about this. Here is my code,[CODE...]
View 4 RepliesHow to save image from webbrowser loaded page to hdd (after loading save to hdd)?
View 2 RepliesI am working on watermarking image.
In the below code I load the image to the graphics path using resource image and adding text on it. When I add the image through open file dialog it paints on the form with original size but I need to resize it, add it to the PictureBox, add text to it and give zoom and pan options to it and then I need to save with the original size.
When I resize and when save the image I endi up with a small image.
Here is my code:
Imports System.Collections.ObjectModel
Imports System.Drawing.Drawing2D
Public Class Form1
[Code]....
how to rotate,resize,crop any image and save it using vb.net ?
View 2 RepliesI have the following code found on internet:
Const WM_CAP_START = &H400S
Const WM_CAP_EDIT_COPY = WM_CAP_START + 30
'The first step is to recognize that the video captured by the web cam can be saved as individual images. By displaying a series of continuous images on the client, it is similar to watching a video stream. To capture an image, I have defined the following subroutine:
'---save the video data into the Image global variable---
Public Sub CaptureImage()
Dim data As IDataObject
Dim bmap As Image
Dim ms As New IO.MemoryStream()
'---copy the image to the clipboard---
[Code] .....
The problem is the code fail to retrieve the image from clipboard? What I'm trying to do is connect to a webcam, then save the video stream file on this webcam as bitmap file before transfer to the client side as an array of bytes.
I'm using Bitmap to show picture box like slideshow using Timer. For each timer interval, I've to go for new instance of Bitmap, there System memory increases to 1MB, How to resolve this, 'BG is picture box
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tic Dim img As Bitmap
img = New Bitmap(System.Drawing.Bitmap.FromFile(FileIO.FileSystem.GetFiles
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I'm trying to use a ToolTip directly to a Bitmap Object (System.Drawing.Bitmap), aparently I can't do this because Bitmap isnt a Windows Control.
View 1 Replies