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Being a 3D game developer, I have almost zero-knowledge in server-side programming and I am trying to write an app that does the below:
1. Take a photo from my iphone, save it to a file. 2. Send the file to some server 3. 3D-lize the image file received, or do other bit-wise transformations with it. 4. Fetch the processed file from the server.
I know many apps does this already and would like to know what technologies are used behind the scenes.
What I have tried so far:
1. Setup an app on Google app engine so that I can use http post methods to upload the file from the iPhone (ASIHTTPRequest used here). Java and Python tried. 2. Files are uploaded fine, but I have no idea what to do next as I heard you the file system on the app engine is read-only :eek:
Ain't too sure if I am on the right track. Perhaps I should try other technologies such as PHP? But then, where would I host this? How would I actually do manipulations to my files uploaded.
Being a 3D game developer, I have almost zero-knowledge in server-side programming and I am trying to write an app that does the below:
1. Take a photo from my iphone, save it to a file. 2. Send the file to some server 3. 3D-lize the image file received, or do other bit-wise transformations with it. 4. Fetch the processed file from the server.
I know many apps does this already and would like to know what technologies are used behind the scenes.
What I have tried so far:
1. Setup an app on Google app engine so that I can use http post methods to upload the file from the iPhone (ASIHTTPRequest used here). Java and Python tried. 2. Files are uploaded fine, but I have no idea what to do next as I heard you the file system on the app engine is read-only :eek:
Ain't too sure if I am on the right track. Perhaps I should try other technologies such as PHP? But then, where would I host this? How would I actually do manipulations to my files uploaded.
Thanks,
Spark
I would never suggest using PHP. I'm not familiar with the Google app engine but this sounds like something that could be implemented easily in Python on a cheap VPS.
My approach would be to use Apache/mod_python to accept the upload. (honestly I would just try to HTTP POST without going through the formal file upload process since you're not trying to interact with web browser.
For image processing on servers I almost always use ImageMagick it's open source and available for every platform, and is the standard for server side image processing. I always use the command line interface with a pipe to access it from inside a script. (php back in the day, or python now)
something like:
from os import popen from mod_python import util, apache
def handler(req): fields = util.FieldStorage(req) if fields.has_key(\"file\"): new_file = file(temp_fname) pipe = popen(\"convert %s\" % (temp_fname) # obviously this would be specific to your application req.content_type = \"image/png\" req.write(pipe.read()) # flush imagemagick's stdout stream to our request's output stream return apache.OK
This isn't tested code but should be enough to get you started. Before I did mobile, I did web apps so I talk a lot on my blog. (see sig)
I would never suggest using PHP. I'm not familiar with the Google app engine but this sounds like something that could be implemented easily in Python on a cheap VPS.
My approach would be to use Apache/mod_python to accept the upload. (honestly I would just try to HTTP POST without going through the formal file upload process since you're not trying to interact with web browser.
For image processing on servers I almost always use ImageMagick it's open source and available for every platform, and is the standard for server side image processing. I always use the command line interface with a pipe to access it from inside a script. (php back in the day, or python now)
something like:
from os import popen from mod_python import util, apache
def handler(req): fields = util.FieldStorage(req) if fields.has_key(\"file\"): new_file = file(temp_fname) pipe = popen(\"convert %s\" % (temp_fname) # obviously this would be specific to your application req.content_type = \"image/png\" req.write(pipe.read()) # flush imagemagick's stdout stream to our request's output stream return apache.OK
This isn't tested code but should be enough to get you started. Before I did mobile, I did web apps so I talk a lot on my blog. (see sig)
If your server can support java servlets (a little more money than cheap hosting) than java is a good way to go. there is a 2d and 3d adavanced imaging library available.
sparkso
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Anywhere you want. And for that reason, you can do manipulate the files on the server as well.
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0 • Off Topic Insightful Disagree Dislike Like AwesomeAppvision
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0 • Off Topic Insightful Disagree Dislike Like AwesomeMy approach would be to use Apache/mod_python to accept the upload. (honestly I would just try to HTTP POST without going through the formal file upload process since you're not trying to interact with web browser.
For image processing on servers I almost always use ImageMagick it's open source and available for every platform, and is the standard for server side image processing. I always use the command line interface with a pipe to access it from inside a script. (php back in the day, or python now)
something like:
This isn't tested code but should be enough to get you started. Before I did mobile, I did web apps so I talk a lot on my blog. (see sig)
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0 • Off Topic Insightful Disagree Dislike Like AwesomeIf your server can support java servlets (a little more money than cheap hosting) than java is a good way to go. there is a 2d and 3d adavanced imaging library available.
Take a look at this.
http://www.iphonedevsdk.com/forum/newreply.php?do=newreply&p=183448
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