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Java Forum / General / October 2007Fast display of large images
Hi, I have a requirement to display a series of large images on the screen (FULLSCREEN) at an expected rate of 30 fps. Please give me suggestions regarding how this can be achieved with Java. I did get some heads, but I want to start again with a clear mind. Any help will be appreciated. Thanks in advance, Regards, ilano .. >...I did get some heads, but I want to start again with a clear >mind. Did you mean 'leads'? If so, it might pay to mention what they were, so other people do not feel that you are treating them as if they were your paid servants, by repeating answers to a question that had already been answered numerous times. Did you mean 'heads'? Excellent dude, get back to us once you've come down. Did you mean ..something else?  SignatureAndrew Thompson http://www.athompson.info/andrew/ > Hi, > [quoted text clipped - 11 lines] > Regards, > ilano What exactly are the "heads" that you got? Is it possible to compile these images into some sort of movie file? > What exactly are the "heads" that you got? I actually meant "leads" :) I didn't mention them here so as to not get any biased opinion towards any such approach. I will mention at a later point of time, if this discussion becomes fruitful. > Is it possible to compile these images into some sort of movie file? I am open to this idea. But, I have to show these images live. In the sense that they are captured by the camera and have to be immediately displayed. The frame rate is also very important. Another thing is the image size is very large around 8 MB per image. I cannot afford to loose on quality. > > What exactly are the "heads" that you got? > [quoted text clipped - 3 lines] > I will mention at a later point of time, if this discussion becomes > fruitful. Why can't you just tell what you've already considered and ask what people would recommend? Are you afraid we're gonna be biased to one approach based on your own view? I don't get it. > > > What exactly are the "heads" that you got? > [quoted text clipped - 7 lines] > people would recommend? Are you afraid we're gonna be biased to one > approach based on your own view? I don't get it. Well, It did not go the way I wanted it to. Anyways, some people suggested me to go for some kind of native API to achieve the frame rate. Some suggested use of libraries such as JOGL or LWJGL, but i am not too sure as they are complex 3D programming, games, etc. >>>> What exactly are the "heads" that you got? >>> I actually meant "leads" :) [quoted text clipped - 13 lines] > Some suggested use of libraries such as JOGL or LWJGL, but i am not > too sure as they are complex 3D programming, games, etc. My suggestion would be to get a very fast computer with a fast video card. I would do active rendering and play with the number of buffers to get the best performance. knute... On Oct 8, 8:11 am, Knute Johnson <nos...@rabbitbrush.frazmtn.com> wrote: > >>>> What exactly are the "heads" that you got? > >>> I actually meant "leads" :) [quoted text clipped - 21 lines] > > - Show quoted text - The computer is fast enough, so that is not an issue. The same thing is achievable from using some C++ library or throught VC ++. But not the same behavior in Java. > On Oct 8, 8:11 am, Knute Johnson <nos...@rabbitbrush.frazmtn.com> > wrote: [quoted text clipped - 30 lines] > > But not the same behavior in Java. Its been a while since ive actually worked with images and displaying them and such. If this is an application then pre-loading the images (either through writing to an invisible canvas) seems like your best idea and then do the whole canvas flip thing. Gah. End of day and my brain isn't working. If you still need help let me know (also curious about the other leads that you got fot my own future reference). Graeme > them and such. If this is an application then pre-loading the images > (either through writing to an invisible canvas) seems like your best > idea and then do the whole canvas flip thing. No, unfortunately I can't do preloading as I have to display them realtime as captured from a camera. > Gah. End of day and my brain isn't working. If you still need help let > me know (also curious about the other leads that you got fot my own [quoted text clipped - 3 lines] > > - Show quoted text - I am looking into two libraries lwjgl and jogl for possible solutions. I came across this article which say in future to speed up swing, they might start using jogl for rendering. Well, its an old article talking about present. I don't know if it is true. http://today.java.net/pub/a/today/2003/09/11/jogl2d.html Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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