python Programming Glossary: bands

http://stackoverflow.com/questions/10578434/big-satellite-image-processing

I'm having is that the images are of 5000 x 5000 x 5 bands pixels. If I try to run this on the whole image I get a memory.. array transposed so observations are columns dm zeros 2 bands cols rows k 0 for b in pos band1 inDataset1.GetRasterBand b.. 1 band2 band2.ReadAsArray x0 y0 cols rows .astype float dm bands k ravel band2 k 1 Even just creating a 10 x 25 000 000 numpy..

These spectrum bands used to be judged by eye, how to do it programmatically?

http://stackoverflow.com/questions/10764569/these-spectrum-bands-used-to-be-judged-by-eye-how-to-do-it-programmatically

spectrum bands used to be judged by eye how to do it programmatically Operators..

Financial Charts / Graphs in Ruby or Python

http://stackoverflow.com/questions/1089307/financial-charts-graphs-in-ruby-or-python

but I don't need the moving average or Bollinger bands JFreeChart can do this in Java but I'd like to make my codebase..

How to implement band-pass Butterworth filter with Scipy.signal.butter

http://stackoverflow.com/questions/12093594/how-to-implement-band-pass-butterworth-filter-with-scipy-signal-butter

passband in dB while gstop is the attentuation in the stopbands. Say for example you wanted to design a filter for a sampling.. 300 4000 and 3100 4000. Now lets say you wanted the stopbands to be down 30 dB 100 Hz from the corner frequencies. Thus your.. 30 dB 100 Hz from the corner frequencies. Thus your stopbands would start at 200 and 3200 Hz resulting in the digital frequencies..

Resampling a numpy array representing an image

http://stackoverflow.com/questions/13242382/resampling-a-numpy-array-representing-an-image

don't want to interpolate along the z axis creating new bands. If you have something like a 3 band RGB image that you'd like..

PIL merge of two images with alpha channels - not working as expected

http://stackoverflow.com/questions/13750447/pil-merge-of-two-images-with-alpha-channels-not-working-as-expected

Let X Y be two RGBA images. Merge X and Y considering the bands RGB from X and the bands RGBA from Y producing an image Z. Set.. Merge X and Y considering the bands RGB from X and the bands RGBA from Y producing an image Z. Set the band A in Z to that.. img Image.open image ia wa None None if len img.getbands 4 ir ig ib ia img.split img Image.merge 'RGB' ir ig ib if len..

Comparing image in url to image in filesystem in python

http://stackoverflow.com/questions/13875989/comparing-image-in-url-to-image-in-filesystem-in-python

is no common agreement to compare images with multiple bands like color images. To handle that I will consider the application..

Looking for File Traversal Functions in Python that are Like Java's

http://stackoverflow.com/questions/140758/looking-for-file-traversal-functions-in-python-that-are-like-javas

Setting the size of the plotting canvas in Matplotlib

http://stackoverflow.com/questions/16057869/setting-the-size-of-the-plotting-canvas-in-matplotlib

# get the dimensions ypixels xpixels bands img.shape # get the size in inches dpi 72. xinch xpixels dpi..

Recognising tone of the audio

http://stackoverflow.com/questions/1797631/recognising-tone-of-the-audio

signal i.e. how strong is the signal in certain frequency bands. Then it's a matter of finding the frequency that has the strongest..

Using the Image.point() method in PIL to manipulate pixel data

http://stackoverflow.com/questions/2181292/using-the-image-point-method-in-pil-to-manipulate-pixel-data

pixel value and the resulting table is applied to all bands of the image. I've spent some time hacking around with the interface..

Rasterizing a GDAL layer

http://stackoverflow.com/questions/2220749/rasterizing-a-gdal-layer

to points they might not plot. Use gdal.RasterizeLayer ds bands layer burn_values options BURN_VALUE_FROM Z if you want to use..

RGB to HSV conversion using PIL

http://stackoverflow.com/questions/4554627/rgb-to-hsv-conversion-using-pil

using the colorsys.rgb_to_hsv function to calculate H S V bands operating on the V one and then converting back to RGB before..

Is there a good way to do this type of mining?

http://stackoverflow.com/questions/7076349/is-there-a-good-way-to-do-this-type-of-mining

68 203 68 204 68 100 68 101 68 101 ... For the horizontal bands I am thinking I could just go ahead and use small sliding windows.. I am guessing the same approach works for the vertical bands as well but not in all cases because there is a subtle difference.. there is a subtle difference in horizontal and vertical bands points should appear close to be considered a group horizontally..