Would you please help me ?
I want to load data to Image (QImage) from String or binary String without
using PIL module .
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sa6113 wrote:
Would you please help me ?
I want to load data to Image (QImage) from String or binary String without
using PIL module .
you can load data straight into a numpy array with numpy.fromstring() -- if it's in an easy format (RGB, RGBA), then you should be able to go from there.
What do you want to do with the image data?
-CHB
--
Christopher Barker, Ph.D.
Oceanographer
Emergency Response Division
NOAA/NOS/OR&R (206) 526-6959 voice
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Chris.Barker@...259...
Is there anyway to use the modules that are already on the system, or those
that are pure Python ?
I want to show a plot that draws with backend agg in my GUI , I mean in a
specified place that its type is Qlabel or QFrame , I don't want to save the
plot befor show it.
Christopher Barker wrote:
sa6113 wrote:
Would you please help me ?
I want to load data to Image (QImage) from String or binary String
without
using PIL module .you can load data straight into a numpy array with numpy.fromstring() --
if it's in an easy format (RGB, RGBA), then you should be able to go
from there.What do you want to do with the image data?
-CHB
--
Christopher Barker, Ph.D.
OceanographerEmergency Response Division
NOAA/NOS/OR&R (206) 526-6959 voice
7600 Sand Point Way NE (206) 526-6329 fax
Seattle, WA 98115 (206) 526-6317 main receptionChris.Barker@...259...
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How use numpy in order to create Image object from string ?
.
.
.
size = canvas.get_width_height( )
buffer = canvas.tostring_rgb()
img = numpy.empty(size,numpy.uint32)
img = numpy.fromstring(buffer,numpy.uint32)
img is an array , but I want an Image object (without using PIL ).
sa6113 wrote:
Would you please help me ?
I want to load data to Image (QImage) from String or binary String without
using PIL module .
--
View this message in context: http://www.nabble.com/how-load-data-to-Image-from-String--tp15784115p15822415.html
Sent from the matplotlib - users mailing list archive at Nabble.com.
I need QImage in order to display or use in GUI , for exa. in QFrame or
QLabel , I can convert the Image to QImage , but the problem is that I
haven't access to Image object without saving that , also I can convert the
figure (Plot) to string or buffer but I don't know what should I do after
that and how convert it to Image.
What about numpy or Numerical Python , may I use fromstring or another
function ?
Or what about savining the string binary or buffer in StringIO and then
convert to QImage ?
Christopher Barker wrote:
sa6113 wrote:
Would you please help me ?
I want to load data to Image (QImage) from String or binary String
without
using PIL module .you can load data straight into a numpy array with numpy.fromstring() --
if it's in an easy format (RGB, RGBA), then you should be able to go
from there.What do you want to do with the image data?
-CHB
--
Christopher Barker, Ph.D.
OceanographerEmergency Response Division
NOAA/NOS/OR&R (206) 526-6959 voice
7600 Sand Point Way NE (206) 526-6329 fax
Seattle, WA 98115 (206) 526-6317 main receptionChris.Barker@...259...
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sa6113 wrote:
I need QImage in order to display or use in GUI , for exa. in QFrame or
QLabel , I can convert the Image to QImage , but the problem is that I
haven't access to Image object without saving that , also I can convert the
figure (Plot) to string or buffer but I don't know what should I do after
that and how convert it to Image.
I'm going to try one more time -- I actually answered all this in my last note:
1) you may not need to do this yourself at all -- look at the embedding in QT examples -- they show you how to embed MPL plots in a regular old QT application.
This may help:
http://www.scipy.org/Cookbook/Matplotlib/Qt_with_IPython_and_Designer
or this:
http://www.krugle.org/examples/p-WiYT16ZpEKzLv4fa/embedding_in_qt.py
(that should be in the MPL distro too)
2) If you really do need to convert the binary image data from MPL into a QImage, then you may be able to figure out how by looking at the QT backend code. If that doesn't work, then this is a question for the PyQT docs or mailing list.
-CHB
--
Christopher Barker, Ph.D.
Oceanographer
Emergency Response Division
NOAA/NOS/OR&R (206) 526-6959 voice
7600 Sand Point Way NE (206) 526-6329 fax
Seattle, WA 98115 (206) 526-6317 main reception
Chris.Barker@...259...