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Search found 44327 results on 1774 pages for 'python image library'.

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  • Transform OpenCV image data type to Devil image format and vice-verca

    - by D.K
    I want to use a CUDA-enabled SIFT library but I am using the OpenCV driver to get images from the webcam? The Cuda library is using the Devil Library for image data types. Should I transofrm the images from OpenCV data types to Devil? Or Should I use another method for getting images from the webcam[devil compatible data types]? Thanks for your attention

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  • Python Mindstorms RCX

    - by Kyle Schmidt
    I've got 30 unopened Lego Mindstorms kits that I'd love to use in my intro programming class to do some simple robotics stuff at the end of the year. We're using Python in the class, so I'd prefer there to be a way for the kids to write the programs in Python. Unfortunately, these are old kits with RCX bricks - not the newer NXT ones, so most of the projects like NXT_Python can't help me. Is there any way to make that happen?

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  • midi input in python

    - by Nicola Montecchio
    Hello I'm coding a demo in python and I need to read a MIDI file in python (no real-time stuff is needed). In particular, I'm looking for a library which preserves channel information. The most promising libraries I found are: http://code.google.com/p/midiutil/ http://www.mxm.dk/products/public/pythonmidi Any experience with those? Thanks a lot Nicola Montecchio

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  • sorl-thumbnail unit tests fail by 1 pixel (!)

    - by stevejalim
    Hi I'm using sorl-thumbnail in a Django 1.2 (currently 1.2 RC) project and getting a surprising failure of four of sorl's built-in unit tests. Essentially, the resized images are all 1px shorter than the unit tests expect them to be. See below for details I'm developing on OSX 10.5.8 (not Snow Leopard) with Python 2.5.1 (r251:54863, Feb 6 2009, 19:02:12) and PIL 1.1.6. Any thoughts what might be up? Cheers Steve ====================================================================== FAIL: test_extension (sorl.thumbnail.tests.fields.FieldTest) ---------------------------------------------------------------------- Traceback (most recent call last): File "/usr/local/django/myprojectnamehere/lib/sorl/thumbnail/tests/fields.py", line 66, in test_extension self.verify_thumbnail((50, 37), thumb, expected_filename) File "/usr/local/django/myprojectnamehere/lib/sorl/thumbnail/tests/base.py", line 92, in verify_thumbnail self.assertEqual(image.size, expected_size) AssertionError: (50, 38) != (50, 37) ====================================================================== FAIL: test_thumbnail (sorl.thumbnail.tests.fields.ImageWithThumbnailsFieldTest) ---------------------------------------------------------------------- Traceback (most recent call last): File "/usr/local/django/myprojectnamehere/lib/sorl/thumbnail/tests/fields.py", line 111, in test_thumbnail self.verify_thumbnail((50, 37), thumb, expected_filename) File "/usr/local/django/myprojectnamehere/lib/sorl/thumbnail/tests/base.py", line 92, in verify_thumbnail self.assertEqual(image.size, expected_size) AssertionError: (50, 38) != (50, 37) ====================================================================== FAIL: testTag (sorl.thumbnail.tests.templatetags.ThumbnailTagTest) ---------------------------------------------------------------------- Traceback (most recent call last): File "/usr/local/django/myprojectnamehere/lib/sorl/thumbnail/tests/templatetags.py", line 118, in testTag self.verify_thumbnail((90, 67), expected_filename=expected_fn) File "/usr/local/django/myprojectnamehere/lib/sorl/thumbnail/tests/base.py", line 92, in verify_thumbnail self.assertEqual(image.size, expected_size) AssertionError: (90, 68) != (90, 67)

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  • Python code translation to JVM

    - by jldupont
    Is there such a thing as a "translator" (for lack of a better word in my mind now) that translates Python code directly to JVM / Dalvik bytecode? Would be great for writing Android applications in Python! NOTE: I know about the scripting capabilities of the Android platform but I am looking for something that would generate a '.apk' without having to install the 'scripting' package... annoying for end-users.

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  • Python editor with automatic code completion?

    - by netvope
    I have seen various articles about good Python editors/IDEs, like this. However, none of them points out whether the editors support automatic code completion. I tried notepad++, PyScript and Komodo Edit, but all of these requires a hotkey to invoke the code completion dialog. Do you know any Python editors with automatic code completion?

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  • Run python file -- what function is main?

    - by Jasie
    I have simple python script, 'first.py': #first.py def firstFunctionEver() : print "hello" firstFunctionEver() I want to call this script using : python first.py and have it call the firstFunctionEver(). But, the script is ugly -- what function can I put the call to firstFunctionEver() in and have it run when the script is loaded?

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  • An extended Bezier Library or Algorithms of bezier operations

    - by Sorush Rabiee
    Hi, Is there a library of data structures and operations for quadratic bezier curves? I need to implement: bezier to bitmap converting with arbitrary quality optimizing bezier curves common operations like subtraction, extraction, rendering etc. languages: c,c++,.net,python Algorithms without implementation (pseudocode or etc) could be useful too. (especially optimization)

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  • pdftotext can't find any of the files to convert when called within a python script

    - by hatorade
    i have a python script which keeps crashing on: subprocess.call(["pdftotext", pdf_filename]) the error being: OSError: [Errno 2] No such file or directory the absolute path to the filename (which i am storing in a log file as i debug) is fine; on the command line, if i type pdftotext <pdf_filename_goes_here> it works for any of the alledgedly bad file names. but when called using subprocess in python i keep getting that error. what is going on???

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  • Exit to command line in Python

    - by fuenfundachtzig
    I have a script that I want to exit early under some condition: if not "id" in dir(): print "id not set, cannot continue" # exit here! # otherwise continue with the rest of the script... print "alright..." [ more code ] I run this script using execfile("foo.py") from the Python interactive prompt and I would like the script to exit going back to the command line. How do I do this? If I use sys.exit(), the Python interpreter exits completely.

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  • Python - drag file into .exe to run script

    - by PPTim
    Hi, I have a Python script that takes the directory path of a text file and converts it into an excel file. Currently I have it running as a console application (compiled with py2exe) and prompts the user for the directory path through raw_input(). How do i make it such that I can drag & drop my text file directly into the .exe of the python script? Thanks,

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  • python: simple example for a python egg with a one-file source file?

    - by Jason S
    I'm not quite sure how to build a really simple one-file source module. Is there a sample module out there one the web somewhere which can be built as a python .egg? From the setuptools page it looks pretty simple, you just have your setup.py file and then at least one other .py file somewhere, and I can build an .egg file OK, and even install it using easy_install, but I can't seem to import the file from within python. (note: using 2.6.4)

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  • Python pixel manipulation library

    - by silinter
    So I'm going through the beginning stages of producing a game in Python, and I'm looking for a library that is able to manipulate pixels and blit them relatively fast. My first thought was pygame, as it deals in pure 2D surfaces, but it only allows pixel access through pygame.get_at(), pygame.set_at() and pygame.get_buffer(), all of which lock the surface each time they're called, making them slow to use. I can also use the PixelArray and surfarray classes, but they are locked for the duration of their lifetimes, and the only way to blit them to a surface is to either copy the pixels to a new surface, or use surfarray.blit_array, which requires creating a subsurface of the screen and blitting it to that, if the array is smaller than the screen (if it's bigger I can just use a slice of the array, which is no problem). I don't have much experience with PyOpenGL or Pyglet, but I'm wondering if there is a faster library for doing pixel manipulation in, or if there is a faster method, in Pygame, for doing pixel manupilation. I did some work with SDL and OpenGL in C, and I do like the idea of adding vertex/fragment shaders to my program. My program will chiefly be dealing in loading images and writing/reading to/from surfaces.

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  • Official multiple python versions on the same machine?

    - by drozzy
    Is there an official documentation on python website somewhere, on how to install and run multiple versions of python on the same machine? On linux? I can find gazillions of blog posts and answers - but I want to know if there is a "standard" official way of doing this? Or is this all dependent on OS?

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  • Alternative to zc.buildout that runs on Python3

    - by srid
    My project uses buildout to do primarily two things: automatically fetch dependencies and create scripts; and setup cron jobs (on deployment machines) using the usercrontab buildout recipe. But buildout is not yet available for Python 3. So I would like to consider alternatives for buildout. I know that both virtualenv and pip work on Python 3 - but what is the preferred tool to automate the build toolchain (of creating virtualenv, and automatically installing/upgrading deps)? There is fabric, paver, and so on. What is your preferred tool of choice in this case? It must work seamlessly on both Windows and *nix.

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  • Idiomatic Python: 'times' loop

    - by perimosocordiae
    Say I have a function foo that I want to call n times. In Ruby, I would write: n.times { foo } In Python, I could write: for _ in xrange(n): foo() But that seems like a hacky way of doing things. My question: Is there an idiomatic way of doing this in Python?

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  • Which python mpi library to use?

    - by Dana the Sane
    I'm starting work on some simulations using MPI and want to do the programming in Python/scipy. The scipy site lists a number of mpi libraries, but I was hoping to get feedback on quality, ease of use, etc from anyone who has used one.

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