It would be super helpful if the jpeg files produced by filepicker's handy convert API could produce progressive jpegs. Can it be done already?
We don't currently support progressive jpegs. It's a good idea and I've created a feature request ticket. Thanks.
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I have a client that is really wanting thumbnails of uploaded PDF files on their site. Unfortunately the host does not / will not support ImageMagik as part of their hosting. They do support GD but that's not helpful in this situation.
Has anybody run across this problem before? Any suggestions or recommendations? Almost every solution I come across for doing PDF > jpeg conversion involves ImageMagik.
i´m working on a image database build with silverstripe framework. It needs to be able to upload large tiff files and they should be converted to jpeg. is there a build in function to do that, or do I have to use a library for that?
Regards,
Florian
SilverStripe doesn't have built-in image conversion utilities, just a GD class which mainly handles resizing of existing images (in gif/jpg/png).
ImageMagick supports conversion of TIFFs (see supported formats). I'm sure you can find PHP wrapper libraries for it (doesn't have to be specific to SilverStripe), or use the commandline tool directly via exec().
Other than that, we have the UploadField class to handle uploads. It uses the jQuery fileupload plugin, which supports larger files (although server timeouts and PHP config play a role here as well). You might want to look into chunked uploads.
I am looking to encode a jpg sequence into an mpeg format on an iphone project I am working on. My google searches are coming up pretty short. Does anyone happen to know of a library that would let me do something like this?
have a look at ffmpeg
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i am making an app in which i have to upload an image/video file to the server...i want to know what things i needed to do this..?and i also have to show the progress bar while image is uploading...how can i do this..?
can you write some code snippet on how to upload file to server...?
If you are using http to transfer files.Allseeing-i have a great api for this called ASIHTTPRequest, its feature rich, well documented, easy to use and it supports file transfer tracking.
They have code examples and a description on how to include it in your projects.
I'm trying to read XMP information from a jpeg on iPhone.
I can get tags from IPTC, TIFF or EXIF easily using ImageIO but not XMP. I'm specially interested the rating tag.
Does anyone know how to do that?
I've been trying to figure this out myself for a bit. Based on what I've found it looks like a you will need to create or find a custom toolset for parsing the XMP data. It is stored in an XML format. Adobe has an SDK and toolset for dealing with XMP data that can be found here. If you look into that there was an error in the compilation instructions for the SDK in XCode. You can get a correction here on there forums.
You can also find the adobe XMP specification documents here
I still haven't gotten very deep into the rabbit hole of this topic yet myself but since no one else was responding here I thought I'd give you what little I've been able to dig up on the topic.