jpeg

问题 How can I save BufferedImage with TYPE_INT_ARGB to jpg? Program generates me that image: And it's OK, but when I save it in that way: ByteArrayOutputStream byteStream = new ByteArrayOutputStream(); BufferedOutputStream bos = new BufferedOutputStream(byteStream); try { ImageIO.write(buffImg, "jpg", bos); // argb byteStream.flush(); byte[] newImage = byteStream.toByteArray(); OutputStream out = new BufferedOutputStream(new FileOutputStream("D:\\test.jpg")); out.write(newImage); out.close(); }

问题 I am trying to use Python to resize picture. With my camera, files are all written is landscape way. The exif information handle a tag to ask the image viewer to rotate in a way or another. Since most of the browser doesn't understand this information, I want to rotate the image using this EXIF information and keeping every other EXIF information. Do you know how I can do that using Python ? Reading the EXIF.py source code, I found something like that : 0x0112: ('Orientation', {1: 'Horizontal

问题 I am trying to use Python to resize picture. With my camera, files are all written is landscape way. The exif information handle a tag to ask the image viewer to rotate in a way or another. Since most of the browser doesn't understand this information, I want to rotate the image using this EXIF information and keeping every other EXIF information. Do you know how I can do that using Python ? Reading the EXIF.py source code, I found something like that : 0x0112: ('Orientation', {1: 'Horizontal

问题 We have images of our warehouse stock within our database. We will pull a list of the file names for those images into a .txt file. The content of the file-list.txt will be for example: 060128412948.jpg 068912475982.jpg etc. We have 3 images for each stock 2 of them are low resolution and 1 of it is a high resolution image. I need the script to only copy the high resolution image for each stock from the folders/sub-folders into a mother directory. This is what I have so far but this only

问题 Basically, I'm trying to create a stop-motion film making application, due to the absence of any decent free versions that work on the internet, by taking images (JPEG preferably, but any format will do) and encode them into a video (any format is good enough) I've managed so far to decode a JPEG data into a string and save that to a .txt file, and I've re-encoded another JPEG using the bytes decrypted. I've tried PyMedia and Pyglet, neither of which installed due to having Python 3.3 >:( So,

问题 I used ffmpeg to generate a one-frame mjpeg video at the maximum possible quality, like this: ffmpeg -i reference.png -frames:v 1 -codec:v mjpeg -q:v 1 -an 1.mkv I also made a reference conversion to jpeg using imagemagick, at 85% quality: convert reference.png -quality 85 85.jpg The resulting "1.mkv" is only 83K, despite the fact that 85.jpg is 88K - and that's not even the highest possible jpeg quality. At 95% imagemagick produces a file of 120K, and 207K at 100%. (Though it should be noted

问题 I need to be able to load a jpeg/png image from disk and show it in flex and send it to a server as a base64 encoded string. But once the image file is loaded, in my flash.display.LoaderInfo object, the bytes property (type of ByteArray ) contains more byte than the file content. Example: image file size: 3089 flash.display.LoaderInfo.bytesTotal:3089 flash.display.LoaderInfo.bytes.length:3155 As i need to encode the flash.display.LoaderInfo.bytes in base64 string, i don't know which part of

问题 I'm making an image uploader but for some reason i'm not allowed to upload JPG images in capital letters. How is this possible? I also tried to add JPG to the allowedExts array but that is also not working. $filesize = '8500'; // PUT the filesize here in KB if(isset($_FILES["file"])){ $allowedExts = array("jpg", "jpeg", "gif", "png"); $extension = end(explode(".", $_FILES["file"]["name"])); var_dump($_FILES['file']['type']); var_dump($extension); if ((($_FILES["file"]["type"] == "image/gif")

问题 I'm trying to modify graphic assets of the software I'm using (for aesthetic puroposess, I guess it's hard to do something harmful with graphic assets) but developer encrypted them. I'm not sure why he decided to do that since I used and modified a bunch of similar softwares and developers of those didn't bother (as I can see no reason why encrypting those assets would be necessary). So anyway here are examples of those encrypted graphic assets: http://www.mediafire.com/view/sx2yc0w5wkr9m2h

问题 How exactly does GIMP convert a jpg into a ppm? I'm trying to convert a jpg to a ppm on Android. In Android I use the API to create an ARGB_8888 Bitmap of the jpg then drop the Alpha channel and throw the RGB values into a ppm. But I get different values for RGB from GIMP. 回答1: Have a look into the code. You can find it here: http://git.gnome.org/browse/gimp/tree/plug-ins/common/file-pnm.c 来源： https://stackoverflow.com/questions/4908635/android-gimp-jpg-to-ppm-conversion