masking

问题 I saw some apps where even though a black icon was included, some how the app used CSS to convert the icon into a different colour. I can't seem to repeat this process Here's my back.css file: .dashboard-buttons a { width: 80px; height: 80px; border: 1px solid #ccc; margin: 0px 5px; display:inline-block; border-radius: 10px; background:white; text-decoration:none; -moz-box-shadow: inset 0 0 15px rgba(0,0,0, 0.25); -webkit-box-shadow: inset 0 0 15px rgba(0,0,0, 0.25); } .dashboard-buttons a

问题 I saw the following line of code here in C. int mask = ~0; I have printed the value of mask in C and C++. It always prints -1 . So I do have some questions: Why assigning value ~0 to the mask variable? What is the purpose of ~0 ? Can we use -1 instead of ~0 ? 回答1: It's a portable way to set all the binary bits in an integer to 1 bits without having to know how many bits are in the integer on the current architecture. 回答2: C and C++ allow 3 different signed integer formats: sign-magnitude, one

问题 I'm creating this simple login code for an ATM machine. You enter username and password and you logs in, that works just great. Since I'm not connecting to a database or an external text file and I've just got 1 user, it's just written plainly in the Java code. But when you enter the password "p4ss" I want it to be masked, so instead of seing it on the screen while typing you should see "* * * *" or " " just blank (Like when you enter pass on Linux). Currently my code looks like this: String

问题 I want to hide my password but I don't know how. I have seen show="*" and also getpass but I don't know how to place them into this code. I'm using Python 2.7.3 and coding on a Raspberry Pi. ans = True while ans: print(""" ------------- | 1. Shutdown | | 2. Items | ------------- """) ans=raw_input(""" Please Enter A Number: """) if ans == "1": exit() elif ans == "2": pa=raw_input(""" Please Enter Password: """) if pa == "zombiekiller": print(""" ---------------- | 1. Pi password | | 2.

问题 I registered domain www.a.com I then forwarded with masking (using GoDaddy) traffic from www.a.com to www.really.long.url.com, so users will only see www.a.com in their address bar when visiting my site. The problem, is that if a user clicks a link to www.google.com while on my website, they get directed to Google, but their address bar still reads www.a.com. How can I disable this domain masking for external links? 回答1: Best answer would be "don't use domain masking" because it has many

问题 I'm programming in Swift. I want to mask an image using CALayer and UIImage. I'm creating my mask image programmatically. The created mask image is a UIImage and works fine when I view it on its own. But when I use it as a mask the whole screen becomes white. I suspect that my problem is in configuring the CALayer object. I would appreciate your help. Thanks! class ViewController: UIViewController { @IBOutlet weak var imageView: UIImageView! override func viewDidLoad() { super.viewDidLoad() /

问题 Example: from __future__ import division import numpy as np n = 8 """masking lists""" lst = range(n) print lst # the mask (filter) msk = [(el>3) and (el<=6) for el in lst] print msk # use of the mask print [lst[i] for i in xrange(len(lst)) if msk[i]] """masking arrays""" ary = np.arange(n) print ary # the mask (filter) msk = (ary>3)&(ary<=6) print msk # use of the mask print ary[msk] # very elegant and the results are: >>> [0, 1, 2, 3, 4, 5, 6, 7] [False, False, False, False, True, True, True

问题 I create a closed region on a picture by impoly('Closed', true) and lastly after marking the area for the mask BW = createMask(h) in Matlab commandline. Initial commands before marking points for the mask in the figure imshow('contour.png'); h = impoly('Closed',true); Here, I used nkjt's answer below. The picture to be filtered by the function conditionalRemoval(image, area) Then, I run image = imread('contour.png'); areaLazyRemoval = BW; image = conditional_removal(image, areaLazyRemoval); I

问题 I have masked image successfully with the help of following link: How to Mask an UIImageView In above link there are two images named image.png and mask.png , After masking the image i want to crop the result image. My concern is that I want to crop the image named image.png but mask.png should be stay still as it is. I am using KICropImageView https://github.com/zhangzhixun/CropImageDemo for cropping the Image. But when I scroll the image my whole result image is scrolling but I just want to

问题 I want to use MLPs to solve regression problem. I have inputs with variable length to fix this I want to use Zero-padding with masking layer . I read the inputs from csv file using pandas library. Here is how my data look like. I know only how to fill NaN values with 0 using this command x_train.fillna(0.0).values Like the first row : [4, 0, 0, 512, 1.0, 0.0, 1.0, 0.0, 128.0 , NaN] After padding : [4, 0, 0, 512, 1.0, 0.0, 1.0, 0.0, 128.0 , 0.0] The mask should be like this : [1, 1, 1, 1, 1, 1