I have the code below, and I'd like it to make it save as jpeg file format, instead of bmp.   Bitmap current = (Bitmap)_latestFrame.Clone();         using (SaveFileDialog sfd = new SaveFileDialog())         {             sfd.Filter = "*.bmp|*.bmp";             if (sfd.ShowDialog() == DialogResult.OK)             {                 current.Save(sfd.FileName);             }         }          current.Dispose();     }   Do you have any idea on what I should change to make it? I tried using Image.Format, but that didn't work.
122169
Is there any way to convert a bmp image to jpg/png without losing the quality in C#? Using Image class we can convert bmp to jpg but the quality of output image is very poor. Can we gain the quality level as good as an image converted to jpg using photoshop with highest quality?
112802
i've got some binary data which i want to save as an image. When i try to save the image, it throws an exception if the memory stream used to create the image, was closed before the save. The reason i do this is because i'm dynamically creating images and as such .. i need to use a memory stream.  this is the code:  [TestMethod] public void TestMethod1() {     // Grab the binary data.     byte[] data = File.ReadAllBytes("Chick.jpg");      // Read in the data but do not close, before using the stream.     Stream originalBinaryDataStream = new MemoryStream(data);     Bitmap image = new Bitmap(originalBinaryDataStream);     image.Save(@"c:\test.jpg");     originalBinaryDataStream.Dispose();      // Now lets use a nice dispose, etc...     Bitmap2 image2;     using (Stream originalBinaryDataStream2 = new MemoryStream(data))     {         image2 = new Bitmap(originalBinaryDataStream2);     }      image2.Save(@"C:\temp\pewpew.jpg"); // This throws the GDI+ exception. }   Does anyone have any suggestions to how i could save an image with the stream closed? I cannot rely on the developers to remember to close the stream after the image is saved. In fact, the developer would have NO IDEA that the image was generated using a memory stream (because it happens in some other code, elsewhere).  I'm really confused :(
100510
So this is probably a simple solve and most likely due to me adding a setting that I shouldn't have.  So for all of my other animations I have done, I render each step as a PNG image and then use the Image Sequencer to render the final animation, and it works well. But this time around, all of the rendered images are not saved as PNGs but rather saved without a file type but can still be opened via Chrome.  Any ideas how I can get Blender to save these renders as a PNG?  Specs: GeForce GTX 1060 3GB, Windows 10, intel i7, 8GB RAM, Blender 2.79
49935
I'm a novice shooting in RAW and find that half the time my camera JPEG images come out better than my Lightroom tweaks to RAW files.  So to give myself a better start I'd like to apply the JPEG settings that are applied automatically by the camera to my RAW files in lightroom so that initially my RAW files look exactly like the JPEG files.   How can I do this?
20306
I have a screenshot where I want only a part of the pasted image, and I want to turn the white that's in it transparent.   First I need to crop the pasted image. I have selected the layer and a rectangle which I want. I can't seem to find the option that crops the current layer to the current selection. What's this called?
29723
When converting an array of jpegs to a video file (ogg format) I have been using the -crf option.  What are the valid ranges for -crf? Currently I am using 23.    I cannot find the bookmark I read to know what this flag does and I have spent some time Googling around.  These are the arguments I am using at the moment:  -f image2 -r 10 -i " + _sourcePath + @"\img%05d.jpg -crf 18  -y -r 10 " + _destPath + "\\" + _filename + ".ogg"
33332
Is there a way to convert a .JPG image in to vector format?  I'm using Illustrator and I've tried that "Image Trace" but the result doesn't look any where close to my original.  Plus, I cannot select individual letters of a word like I can in an .AI or .EPS file.
94950
I am wondering how to use ffmpeg to create video thumbnails something like this (taken from a VLC forum):  I know totem can do this but totem does not support the video format that I am using  says that ffmpeg can do it.
109294
What I want to do is to fill a polygon (country) with a graphic file in any format (jpg., bmp., png.).  It should look like this:     I'm aware that GIS soft is not proper for such a operations but maybe is there any option to do it only in QGIS.
114872
I'm loading an image from a file, and I want to know how to validate the image before it is fully read from the file.  string filePath = "image.jpg"; Image newImage = Image.FromFile(filePath);   The problem occurs when image.jpg isn't really a jpg.  For example, if I create an empty text file and rename it to image.jpg, an OutOfMemory Exception  will be thrown when image.jpg is loaded.  I'm looking for a function that will validate an image given a stream or a file path of the image.  Example function prototype  bool IsValidImage(string fileName); bool IsValidImage(Stream imageStream);
96807
I've exported all my frames to .png.   Could you please explain (step by step) how to convert images to video using the video sequence editor? I used to export as .avi raw before, but because I'm having to constantly start again anytime I come across an error, I've decided to change my method.
88744
I am basically trying to make an intro for my youtube channel. I am sort of familiar with the program because I was playing around with it for a long time, getting the basics of it. With the help of youtube videos I am basically done with my project. I put my name in it and everything. I just need to know how to save the animation onto my desktop as a file that I could open and would be in a video format.
70855
Here's my situation - I want to create a resized jpeg image from a user uploaded image, and then send it to S3 for storage, but am looking to avoid writing the resized jpeg to the disk and then reloading it for the S3 request.  Is there a way to do this completely in memory, with the image data JPEG formatted, saved in a variable?
83444
As implied by the title, does anybody know how to use the gimp-console-[version].exe program to batch convert images between formats (with default settings) in Windows ?
62292
I know people use fancy software like Lightroom or Darktable to post-process their RAW files. But what if I don't? What does the file look like, just, y'know, RAW?
108125
I'd like to convert gif images to jpeg using Java. It works great for most images, but I have a simple transparent gif image:    [In case the image is missing: it's a blue circle with transparent pixels around it]  When I convert this image using the following code:  File file = new File("indexed_test.gif"); BufferedImage image = ImageIO.read(file); File f = new File("indexed_test.jpg"); ImageIO.write(image, "jpg", f);   This code works without throwing an Exception, but results an invalid jpeg image:     [In case the image is missing: IE cannot show the jpeg, Firefox shows the image with invalid colors.]  I'm using Java 1.5.   I also tried converting the sample gif to png with gimp and using the png as an input for the Java code. The result is the same.  Is it a bug in the JDK? How can I convert images correctly preferably without 3rd party libraries?  UPDATE:  Answers indicate that jpeg conversion cannot handle transparency correctly (I still think that this is a bug) and suggest a workaround for replacing transparent pixels with predefined color. Both of the suggested methods are quite complex, so I've implemented a simpler one (will post as an answer). I accept the first published answer with this workaround (by Markus). I don't know which implementation is the better. I go for the simplest one still I found a gif where it's not working.
112213
I seem to be having issues when I try and save the output file as a .png, or .jpeg for that matter. I've set up my user preferences, File, Render Output to my desktop as well as render output in the editor window. What am I missing here? I'm obviously very new to this program and your help would be appreciated. Thanks for your time