Questions tagged [bitmapencoder]
18 questions
6
votes
1 answer
UWP encode image to PNG
I get an image by URI (web or file system) and want to encode it into PNG and save to a temporary file:
var bin = new MemoryStream(raw).AsRandomAccessStream(); //raw is byte[]
var dec = await BitmapDecoder.CreateAsync(bin);
var pix = (await…
Mike Tsayper
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4
votes
1 answer
BitmapEncoder Save Not Supported
I have the following code and I can't see anything wrong, any ideas on what the problem could be?
private static string SaveBaseImage( ZipArchive arc, DBImage image, int imageIndex )
{
using (var mem = new MemoryStream(image.Data))
{
…
MikeT
- 5,398
- 3
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3
votes
1 answer
BitmapEncoder flush throws Argument Exception
I'm trying to resize images in my UWP application. Most of the time the appended code works, but sometimes await encoder.FlushAsync(); throws an ArgumentException.
I've headed over to MSDN…
Florian Moser
- 2,583
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2
votes
1 answer
JPEGEncoder Windows Media Imaging not honoring color profile of Image
I have the following image (have put a screen-grab of the image as its size is more than 2 MB - the original can be downloaded from https://drive.google.com/file/d/1rC2QQBzMhZ8AG5Lp5PyrpkOxwlyP9QaE/view?usp=sharing
I'm reading the image using the…
techno
- 6,100
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2
votes
3 answers
TiffBitmapEncoder, memory bug causing Insufficient Memory Exception in C#/WPF
I have a WPF application where I am saving couple of hundreds of BitmapSources by converting them to TIFF images using TiffBitmapEncoder. However, I have this strange memory consumption which is often throwing Insufficient Memory Exception.
NOTE:…
Miro Bucko
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1
vote
0 answers
C# image /xmp/projectionType setquery error : (add image meta data /xmp/projectionType)
My goal is set value to "/xmp/projectionType" meta data for jpeg image.
I can set "text/descryption" by following code but error throwing when I try to set value for "/xmp/ProjectionType"
using (FileStream fs = new…
Subramani
- 347
- 3
- 11
1
vote
0 answers
BitmapFrame.Create cannot access this object
I'm trying to export several BitmapSource images from to png files. Here's my code:
Thread Call:
var exportImagesThread = new Thread(ExportRangeOfImages);
exportImagesThread.Start();
Function:
private void ExportRangeOfImages()
{
for (var…
Idanis
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- 6
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- 69
1
vote
0 answers
Index was out of range.
I am now want to capture a Bitmap by using the BitmapEncoder/BitmapDecoder. Below is the saveImageAsync codes
private async void SaveBitmapAsync()
{
List _pixelData = null;
//convert the source bitmap to a pixel array
…
Yajun
- 11
- 3
1
vote
2 answers
TiffBitmapEncoder: Making bitmap encoding asynchronous
Problem: how can I save/compress bitmap images (several of them stacked in tiff file) asynchronously with respect to the main thread?
My setting: (synchronous & slow working solution: when the compression is performed the thread remains stuck for a…
Acorbe
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0
votes
0 answers
Unable to capture WPF livechart in bitmap
I'm trying to write a function that will write the results of a test (which have both text output and chart output, stored in a textbox and a livecharts chart respectively) to a pdf file. There are no issues with the text output, but I haven't been…
John Snow
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- 1
0
votes
1 answer
Cannot create more Dispatcher. Runs out of resource?
In our application, we are using PngBitmapEncoder to encode and save PNG image in a separate thread\task. After few days of running the application we are seeing Dispatcher cannot be created from Encoder and throws error
Not enough storage is…
Rahul Sundar
- 480
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- 26
0
votes
0 answers
How detect that BitmapEncoder save method is finished
There is i have :
public void SaveBitmapSourceToFile(string filePath, BitmapSource img)
{
BitmapEncoder encoder = new JpegBitmapEncoder();
encoder.Frames.Add(BitmapFrame.Create(img));
using (FileStream fileStream = new…
Sintex
- 9
- 1
0
votes
1 answer
BitmapEncoder FlushAsync throws Argument Exception - c#
When I'm using below code for image processing it throws exception at FlushAsync(). Strangely this issue happens for some video files only. Can you help why this happen ?
private async Task PreProcessVideoToGetTextAsync(StorageFile file,…
nsds
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0
votes
1 answer
BitmapImage to Bitmap throw exception
i use for a project a function that i found on StackOverflow : https://stackoverflow.com/a/6484754/9535211
The goal of this function is to convert a System.Windows.Media.Imaging.BitmapImage to a System.Drawing.Bitmap.
public Bitmap…
Axel.A
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- 9
0
votes
0 answers
The buffer allocated is insufficient when encoding to Rgba16 UWP
I am encoding a Canvas control which contains Textblocks as child using the following code but I get
The buffer allocated is insufficient
My code
using(InMemoryRandomAccessStream ras = new InMemoryRandomAccessStream())
{
var displayInformation…
PutraKg
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