imaging Questions
1
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I do not have a background in imaging or graphics, so please bear with me :)
I am using JavaCV in one of my projects. In the examples, a Frame is constructed which has a buffer of a certain size. ...
Soninlaw asked 29/2, 2016 at 20:43
5
Solved
bpp = bits per pixel, so 32bpp means 8/8/8/8 for R/G/B/A.
Like .NET has an enum for these "System.Drawing.Imaging.PixelFormat".
Now once I have a Bitmap or Image object with my graphics, how woul...
3
Is there a way to resize an image using GPU (graphic card) that is consumable through a .NET application?
I am looking for an extremely performant way to resize images and have heard that the GPU ...
5
I am trying to get the sample heatmap.py running from:
http://jjguy.com/heatmap/
#image.py
import heatmap
import random
if __name__ == "__main__":
pts = []
for x in range(400):
pts.append((ra...
Ageold asked 6/3, 2013 at 21:22
1
Solved
I am getting the following Exception at ProcessImage(bitmap1, bitmap2);
Unsupported Pixel Format of source or template image
and this is my code:
public static double FindComparisonRatioBetwee...
2
Solved
I am trying to draw a simple circle and save this to a file using the Python Imaging Library:
import Image, ImageDraw
image = Image.new('RGBA', (200, 200))
draw = ImageDraw.Draw(image)
draw...
Ontario asked 23/12, 2013 at 16:26
5
Solved
I have a WPF Image control with attached blur effect.
Is there a way to save the image (with blur) without using RenderTargetBitmap?
Thank you.
UPDATE: I'm using now new custom effect which deri...
1
Solved
3
I am trying to draw certain unicode characters on and image using python (PIL to be precise).
Using the following code I can generate the images with a white background:
('entity_code' is passed ...
Beatriz asked 21/6, 2012 at 6:45
3
Solved
In my project, I'm using (uncompressed 16-bit grayscale) gigapixel images which come from a high resolution scanner for measurement purposes. Since these bitmaps can not be loaded in memory (mainly...
1
Solved
I'm having trouble drawing multilingual text using PIL. Let's say I want to draw text - "ひらがな - Hiragana, 히라가나". But PIL's ImageDraw.text() function takes only one font at a time, so I cannot draw ...
Centigram asked 10/7, 2012 at 10:51
2
Solved
I am making a little family photo album, with the intention to maybe open it to other people to store images later.
I upload the images to ~\images\, then resize them 3 times (Normal view ... thum...
1
Solved
Trying to create a transparent gif with PIL. So far I have this:
from PIL import Image
img = Image.new('RGBA', (100, 100), (255, 0, 0, 0))
img.save("test.gif", "GIF", transparency=0)
Everyth...
Featheredge asked 4/12, 2011 at 15:36
2
Solved
I need to overlay some texts on an image; this text should be lighter or darker based on the overall image lightness.
How to compute the overall (perceived) lightness of an image?
Found something ...
1
I am developing an aplication with C# to use the WIA 2.0 library. At the moment I could use most of the features, such as ADF (auto document feeder), filters and more.
Now, I need to use the duple...
1
Solved
I've been asked to implement an edge-based disparity map, but I fundamentally don't understand what a disparity map is. What is the definition of a "disparity map"?
Alded asked 7/9, 2011 at 16:26
3
So I often run huge double-sided scan jobs on an unintelligent Canon multifunction, which leaves me with a huge folder of JPEGs. Am I insane to consider using PIL to analyze a folder of images to d...
Machado asked 24/3, 2011 at 22:47
5
Solved
I'm looking for ways to determine the quality of a photography (jpg). The first thing that came into my mind was to compare the file-size to the amount of pixel stored within. Are there any other w...
5
Solved
I'm developing a CMS like application where the user should be able to create the menu the way he wants. Ideally, each menu object wouldn't be a text with a background but rather an image of the te...
1
I have thousands of images and I need to weed out the ones which are not photographs, or otherwise 'interesting'.
An 'uninteresting' image, for example, may be all one color, or mostly one color, ...
Cellulose asked 16/2, 2011 at 1:15
4
Solved
I am not sure if this is solveable, but I though I will ask anyway.
In my company we deal with massive enrollment camps where small teams of 5 to 10 people go to a village and enroll people. The e...
Tibbs asked 26/11, 2010 at 15:28
1
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I'd like to create a function, like:
def generateThumbnail(self, width, height):
"""
Generates thumbnails for an image
"""
im = Image.open(self._file)
im.thumbnail((width, height), Image.ANTI...
Harper asked 6/10, 2010 at 14:59
4
Are there any OCR engines designed for identifying text in screen-captured images rather than scanned text? I have a project where I need to retrieve and identify text in an application, and none o...
Bolyard asked 27/7, 2010 at 15:8
1
Solved
How can I save an Image with its original encoding?
It seems that the only way to save an Image is by using a BitmapEncoder but I don't know how I can get the correct format from the image.
Examp...
2
Solved
I've done the hard work, turning my iSight camera on my MacBook into an infrared camera, converted it, set the threshold etc.. and now have an image that looks something like this:
alt text
My pr...
Tonneson asked 4/3, 2010 at 10:46
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