imread

I have a 12-bit pgm-image, which I read with imread. The result is a 16-bit image having values in the full range 0 to 2^16 - 1. How does Matlab scale? Will X = imread('filename'); X = uint16(double(X)*((2^12-1)/(2^16-1))); recover the original intensities? MATLAB does load PGM 12-bit images correctly. However, after MATLAB loads the images, the image values are rescaled from 12-bit to 16-bit. MATLAB uses the following algorithm to scale the values from 12-bit to 16-bit: % W contains the the 12-bit data loaded from file. Data is stored in 16-bit unsigned integer % First 4 bits are 0. Consider

使用 from scipy.misc import imread, imresize, imsave 时出现报错，查找后发现新版本的Scipy不再包含imread，imresize，imsave，需要使用的话，就安装 scipy 1.0.0 版本， 比如： conda install --prefix= /home/xxx/PycharmProjects/project_01/env scipy=1.0.0 imread将用 imageio.imread 来取代，输入： conda install --prefix= /home/xxx/PycharmProjects/project_02/env imageio 安装imageio 同样imresize，imsave也被从scipy移除，分别使用 skimage.transform.resize 和 imageio.imwrite 来代替。 安装skimage (Scikit-image) conda install --prefix= /home/xxx/PycharmProjects/project_02/env scikit-image 来源： https://www.cnblogs.com/booturbo/p/11939187.html

I'm trying to load an image with OPENCV from an io.BytesIO() structure. Originally, the code loads the image with PIL, like below: image_stream = io.BytesIO() image_stream.write(connection.read(image_len)) image_stream.seek(0) image = Image.open(image_stream) print('Image is %dx%d' % image.size) I tried to open with OPENCV like that: image_stream = io.BytesIO() image_stream.write(connection.read(image_len)) image_stream.seek(0) img = cv2.imread(image_stream,0) cv2.imshow('image',img) But it seems that imread doesn't deal with BytesIO(). I'm getting an error. I'm using OPENCV 3.3 and Python 2.7

DCGAN tensorflow实现版本 link DCGAN tensorflow实现版本 link 1. flags = tf.app.flags 2. 查看变量 3. python 链表推导式 4. python glob 5. python 读入图像 6. python range & xrange 7. tensorflow leaky ReLU 实现 8. python title() 9. python // % divmod 10.python np.squeeze 11. python 动画生成 12. python numpy 1. flags = tf.app.flags TensorFlow通过设置flags来传递tf.app.run()所需要的参数 举例： flags = tf.app.flags flags.DEFINE_integer( "epoch" , 25 , "Epoch to train [25]" ) def main () : XXX if __name__ == '__main__' : tf.app.run() 这段代码采用的是tensorflow库中自带的tf.app.flags模块实现命令行参数的解析。如果用终端运行tf程序，用上述两种方式都可以，如果用spyder之类的工具，会报错。 DCGAN & > https://www

1.python实时调取本地摄像头 import numpy as np import cv2 cap = cv2.VideoCapture(0)　　　　#参数为0时调用本地摄像头；url连接调取网络摄像头；文件地址获取本地视频 while(True): ret,frame=cap.read() #灰度化 gray=cv2.cvtColor(frame,cv2.COLOR_BGR2GRAY) cv2.imshow('frame',gray) #普通图片 cv2.imshow('frame',frame) if cv2.waitKey(1)&0xFF==ord('q'): break cap.release() cv2.destroyAllWindows() 2.opencv代码 # -*- coding: utf-8 -*- """ Spyder Editor This is a temporary script file. """ #设置工作路径 import os os.chdir('E:\\0yfl\\SH-spyder-workspace\\') os.path.abspath('.') import numpy as np import cv2 #1.1读取图片imread；展示图片imshow；导出图片imwrite #只是灰度图片 img=cv2.imread(

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I installed OpenCV (opencv-3.0.0-alpha) and it works proberly but I can't use that import import org.opencv.core.*; import org.opencv.highgui.Highgui; public class Main { public static void main(String[] args) { // System.loadLibrary("opencv_java244"); // Mat m = Highgui.imread("C:/Users/raj/Desktop/sa1.png", // Highgui.CV_LOAD_IMAGE_COLOR); // new LoadImage("C:/Users/raj/Desktop/dst1.jpg", m); } } I get this error The import org.opencv.highgui cannot be resolved How can I solve this? 回答1: in opencv3.0, there is no more highgui module in

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am trying to run this simple OpenCV program, but i got this error: OpenCV Error: Assertion failed (size.width>0 && size.height>0) in imshow, file .../opencv/modules/highgui/src/window.cpp, line 276 Code: #include #include using namespace std; int main() { cout What's the cause of this error? 回答1: This error means that you are trying to show an empty image. When you load the image with imshow , this is usually caused by: The path of your image is wrong (in Windows escape twice directory delimiters, e.g. imread("C:\path\to\image.png") should