VI to draw a JPEG (from memory) into a 2D picture control.

[kirsch]

Currently, the only native way to display a JPEG in memory on a 2D picture control in LabVIEW is to

1. save to disk
2. read from disk
3. display

See: 

This is not only silly, but slow: on a reasonable fast machine with an SSD, this takes almost a second!

A simple request: A VI that can go straight from JPEG binary data (other formats would be nice) to a 2D picture control. This is very useful for applications that download images from a server - a pretty common thing to do.

[RavensFan]

That sounds like this idea.

Add function to convert string to image

[Thoric]

NI already have this internally. I received copies of the codes about 10 years ago, to convert a JPG string to an image. I don't have them anymore, but as you're a bluey take a look at your internal systems to see if they're around. Maybe they could be made public??

[AristosQueue (NI)]

Thoric: We do? I've looked. Found nothing. Do you have any idea the names of those VIs?

[tst]

There are VIs which do this for PNG (I think in the web services palette), but those were only added relatively recently. I believe there also VIs which do this for JPEG, but I think they only ship with the vision module or IMAQ and I don't remember if they output a picture or an IMAQ image.

[AristosQueue (NI)]

I found the PNG VIs that Tst mentions.

[Darren]

Duplicate of http://forums.ni.com/t5/LabVIEW-Idea-Exchange/Add-function-to-convert-string-to-image/idi-p/1104573