Is the input TIFF images with Form recognizer Sample Label Tool supported.
https://learn.microsoft.com/en-us/azure/cognitive-services/form-recognizer/build-training-data-set#general-input-requirements
There is a known issue and will be fixed soon. Until the fix is available and as a workaround you can convert the Tiff files to PDFs or images.
Yes.
It is stated on the page you referenced. Are you having any issues regarding TIFF images in combination with the Label Tool?
Format must be JPG, PNG, PDF (text or scanned), or TIFF. Text-embedded PDFs are best because there's no possibility of error in character extraction and location.
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Is codenameone support add flash file.
Is codenameone support add Gif Image programmatically.
how to use create Graphics object.
Codename One or any modern mobile doesn't support adding flash files as those aren't designed for the mobile world.
You can add a gif image by using the "Add Animation" option in the designer tool and then using the getImage(String) method of the Resources object. That means you can't download an arbitrary gif off the internet but you can convert it to a res file and download that dynamically.
You can get a graphics object either by overriding paint(Graphics), implementing a painter etc. or by getGraphics on a mutable image see more here.
For windows programming, can I use PNG file as icon?
No.
An ICO is actually a specialized file format that contains a collection of images at potentially many different sizes and color depths. A png is a specific image.
What you can do is create an .ico from a .png. I've found IconMaker convenient for that purpose.
Well, the difference is that they are different file formats :-).
As to using them as icons on MS Windows:
Only Vista supports PNG icons out of the box; for earlier Windows versions, you will have to use .ico files. There are however many converter programs. So your best bet probably is to internally store icons as PNG during development (as it is a superior format), then convert the icon to .ico during your application's build process.
I was wondering if there was a way to programmatically retrieve the first frame of an AVI and get a bitmap image to show the user a preview. The MediaControl in Silverlight shows a preview for Silverlight supported video files but not AVI. Because I'm in a Silverlight environment I cannot use unmanaged code or libraries to do so. I only have access to the filestream.
The Silverlight runtime doesn't have support for AVI files natively so you won't be able to use those with the MediaElement.
What you would need to do is actually parse the AVI file by hand and pull out frames from that file. Once you get to the point where you are parsing frames, it potentially gets a little trickier.
If you plan on having this work on Silverlight 2, your AVI file would need to contain WMV frames or frames in one of Silverlight's supported image formats(JPG or PNG). If you were working with WMV, I would set up a MediaStreamSource and pass in the desired video frame to the MediaStreamSource as my first sample. If you are working with one of the image formats you should use Image and set its source to a stream. You can see an example where Joe Stegman has used this to help Silverlight 2 support non-native image formats.
If you were doing this in Silverlight 3 (it's in Beta right now) the techniques are generally the same but the media format support grows a bit to include (in addition to WMV): H264, Raw YV12, or Raw ARGB frames. Similarly on the imaging front, you now have the WriteableBitmap which you could use to draw your frame.
If your video is something like Theora, Divx, Xvid, VP6, etc. You would need to find a way to decode that frame so you could display it in Silverlight.
Similar question has been posted on the Silverlight forum. The forum thread includes code samples.
You might want to pick a frame further into the video since the first few frames might fade in, or not be very representative of the video.
Depending on the encoding, your AVI files might not be readable by the MediaPlayer class. (See here for compatible encodings). You might need to transcode the video to do this with managed code. Unless you find/write your own decoder.
I'm planning to make an animation with Silverlight, i want to export the animation to a video format, to be able to share it on video sharing website.
How can i do this ?
You could use a tool like Camtasia to record your screen or part of your screen. It then can be exported to a bunch of different video formats.
A pure code approach is to write a sequence of images, and then combine those images together as a video file. Eric Gunnerson has code to capture images from an animation , its WPF but would probably work in Silverlight? Codeproject has an example of converting a stream of images to an AVI video file in C#. It creates an AVI output. It would be great to go straight to mpg, but as it's compressed the input needs to be a video stream. If you do need mpg as the final output look for an off the shelf avi->mpg converter.
BTW - Let me know how you get on, I'm interested in the performance/functionality of this solution.
MrTelly: That approach would not work because Silverlight does not expose the RenderTargetBitmap class. (Well, this is not completely true, the class is there, but its constructor and methods are all marked SecurityCritical and as such are not normally accessible.)
The Camtasia solution proposed by Jakers is likely the simplest solution.
It's nuts that there isn't a simple way to do this in Silverlight, it's easy as pie in flash.
We have a Silverlight application that needs to load a number of .png files. We can load the images OK, but Silverlight doesn't support reading the pixel data from the Image class.
Can anyone suggest a simple solution for getting at this data? Our current best bet would be a third party .png loading library, but we are having trouble finding a suitable one.
There is no built in classes for doing pixel based imagine manipulation/generation i n Silverlight. You need to implement your own PNG Encoder/Decoder that works on an byte array containing the image information. Joe Stegman has implemented one such encoder you should check out. He got lots of great information about "editable images" in Silverlight over at http://blogs.msdn.com/jstegman/. He does things like applying filters to images, generating mandlebrots and more.
This blog discuss a JPEG Silverilght Encoder (FJCore) you can use to resize and recompress photos client size: http://fluxcapacity.net/2008/07/14/fjcore-to-the-rescue/
Another tool is "Fluxify" which lets you resize and upload photos using Silverilght 2. Can be found over at http://fluxtools.net/
So yes, client side image processing can definitely be done in Silverilght 2. Happy hacking!
PNG decoding is hard to find.
I wrote an article for MSDN that includes some open source code I cobbled together from Joe Stegman, FluxCapacity, and a few others. It includes PNG decoding (as well as GIF, JPG, and BMP) for those in this thread that are looking for that.
http://www.microsoft.com/youshapeit/msdn/ExpertKnowledge/2008-10/InnovateWithSilverlight2.aspx
If you don't care for my implementation of it for Silverlight, then you can go straight to what I modified for PNG decoding: http://sourceforge.net/projects/pr2/
Cheers!
Update: It looks like they no longer offer the source code on the site, so I re-posted the content here:
http://dimebrain.com/2009/01/innovate-with-silverlight-2-article-code-available.html
Thanks - I've seen the Joe Stegman blog. It's very handy, but the decoder he doesn't have is a PNG one. We're using PNGs as we need transparency. The fluxtools link seems to be broken too.
I'm still looking (unsuccessfully) for a PNG decoder I can drop into Silverlight.
One option that may (depending on circumstances) be easier is to save the color data and transparency data separately, then programmatically apply the transparency to the image once you have it loaded. That way, you could save the image as a 8-bit gif representing the alpha channel, plus a jpg or bmp or whatever for the color data.
Dimebrain - that msdn link you provided doesn't have a valid link to the sourcecode - any chance you have a link to the source that works?