python-imaging-library

问题 I am trying to implement a system for a Discord bot that dynamically modifies images and sends them to the bot users. To do that, I decided to use the Pillow (PIL) library, since it seemed simple and straightforward for my purposes. Here is an example of my working code. It loads an example image, as a test modification, draws two diagonal lines on it, and outputs the image as a Discord message: # Open source image img = Image.open('example_image.png') # Modify image draw = ImageDraw.Draw(img

问题 I am trying to implement a system for a Discord bot that dynamically modifies images and sends them to the bot users. To do that, I decided to use the Pillow (PIL) library, since it seemed simple and straightforward for my purposes. Here is an example of my working code. It loads an example image, as a test modification, draws two diagonal lines on it, and outputs the image as a Discord message: # Open source image img = Image.open('example_image.png') # Modify image draw = ImageDraw.Draw(img

问题 I have used Tensorflow Object Detection API to detect hands from images. By using the provided sample code (object_detection_tutorial.ipynb) I have been able to draw bounding boxes on images. Is there any way to select only the detected region (which is inside a bounding box) and get it as an image? For example, Sample Input Image Tensorflow Output What I Want Object detection API sample code can be found here. https://github.com/tensorflow/models/blob/master/research/object_detection/object

问题 I have a simple text in an image image_ball.png . Usually OCR of Tesseract works well, but for this certain image it returns always an empty string. In [1]: from PIL import Image In [2]: from pytesseract import image_to_string In [3]: img = Image.open("image_ball.png") In [4]: image_to_string(img) Out[5]: u'' I could not find a workaround up-to-now. How could I figure out what is going wrong with this image? The versions are: In [6]: import PIL In [7]: PIL.__version__ Out[7]: '4.0.0' $

问题 I am working on a computer vision problem involving some basic transformations and could use your help. Input image: Transformed image I understand that we take this quadrilateral and tilt it and stretch it to obtain a rectangle: I am wondering by what ratio does the quadrilateral get stretched to produce the rectangle ? By what angle is the quadrilateral tilted to get the square ? For example, if we had to replace the quadrilateral section by the transformed image (i.e replace image 3 with

问题 I am working on a computer vision problem involving some basic transformations and could use your help. Input image: Transformed image I understand that we take this quadrilateral and tilt it and stretch it to obtain a rectangle: I am wondering by what ratio does the quadrilateral get stretched to produce the rectangle ? By what angle is the quadrilateral tilted to get the square ? For example, if we had to replace the quadrilateral section by the transformed image (i.e replace image 3 with

问题 I'm trying to access the RGB color channels of an image using PIL , and then change the color intensity of the color channel of the entire image at once. When I say RGB color channels, here is an online example. I don't understand if this has to be done on a pixel by pixel basis or not. I image the logic of the code would look like this: import PIL from PIL import Image image=Image.open("my_pic.gif") image=image.convert('RGB') # made up function channel_values = image.get_channel_values()

问题 I'm trying to access the RGB color channels of an image using PIL , and then change the color intensity of the color channel of the entire image at once. When I say RGB color channels, here is an online example. I don't understand if this has to be done on a pixel by pixel basis or not. I image the logic of the code would look like this: import PIL from PIL import Image image=Image.open("my_pic.gif") image=image.convert('RGB') # made up function channel_values = image.get_channel_values()

问题 I just ran pip install pillow on pycharm windows but it gives an error as mentioned below help me to solve this problem I tired manually installing pillow form downloading pillow form github by python setup.py install but didn't work on installing on pycharm I don't know what the error is the entire process in mentioned below:- Collecting Pillow Using cached https://files.pythonhosted.org/packages/81/1a/6b2971adc1bca55b9a53ed1efa372acff7e8b9913982a396f3fa046efaf8/Pillow-6.0.0.tar.gz

问题 I just ran pip install pillow on pycharm windows but it gives an error as mentioned below help me to solve this problem I tired manually installing pillow form downloading pillow form github by python setup.py install but didn't work on installing on pycharm I don't know what the error is the entire process in mentioned below:- Collecting Pillow Using cached https://files.pythonhosted.org/packages/81/1a/6b2971adc1bca55b9a53ed1efa372acff7e8b9913982a396f3fa046efaf8/Pillow-6.0.0.tar.gz