methods

Need to apply some rapid conversion on the color channels of a image. 1)I have stored in a list the corresponding output value: ListaVred = [0]*255 for i in range(0,255): ListaVred[i]=i*127 / 255 + 128 2)I get the color input value from 0 to 255 from the image 3)should replace in the image the input values with the output i.e. red[45]= 0 ListaVred0] = 128 red[45]= 128 I've looked at cv2.LUT(src,dst) function but not sure about it's use, http://docs.opencv.org/trunk/modules/core/doc/operations_on_arrays.html#cv2.LUT cv2.LUT(ListaVred,red) TypeError: src is not a numpy array, neither a scalar

Trying to write Method in ruby that will translate a string in pig-latin , the rule : Rule 1: If a word begins with a vowel sound, add an "ay" sound to the end of the word. Rule 2: If a word begins with a consonant sound, move it to the end of the word, and then add an "ay" sound to the end of the word and also when the word begins with 2 consonants , move both to the end of the word and add an "ay" As a newbie , my prob is the second rule , when the word begin with only one consonant it work , but for more than one , I have trouble to make it work ,Can somebody look at the code and let me

Why do some object methods/attributes not show up when I call dir on the object? Example: from scipy import sparse e = sparse.eye(2) 'H' in dir(e) returns False . But calling e.H works just fine (returning another sparse matrix object). Why is this so, and how can I see these hidden attributes? I'm using Python 3.5.1. e.H , e.A , e.T are pseudo-properties of the sparse matrix object. shape is a property. In sparse.base.py I find shape = property(fget=get_shape, fset=set_shape) while the dict only contains: In [121]: e.__dict__ Out[121]: {'_shape': (2, 2), 'data': array([[ 1., 1.]]), 'format':

I don't understand accessor methods and I'm stuck with creating setAge, getAge and getName. This is the question: Add three accessor methods, setAge , getAge and getName . These methods should set and get the values of the corresponding instance variables. public class Player { protected int age; protected String name; public Player(String namArg) { namArg = name; age = 15; } } An accessor method is used to return the value of a private or protected field. It follows a naming scheme prefixing the word "get" to the start of the method name. For example let's add accessor methods for name: class

I need help in generating new shipping method in woocommerce version 3+. The name for new field is "Nextday delivery". Like the flat rate it also need to be there in the method but it was not displayed in the drop down select field. The below is the code which I tried. But it's not working for me. function request_a_shipping_quote_init() { if ( ! class_exists( 'WC_Request_Shipping_Quote_Method' ) ) { class WC_Request_Shipping_Quote_Method extends WC_Shipping_Method { public function __construct() { $this->id = 'request_a_shipping_quote'; // Id for your shipping method. Should be uunique. $this

Why does the method add(<T> element) and remove(Object o) accept different arguments? For example in a Set<Short> you add short elements. Why does the method remove accepts Object ? If you can't add any other data type, why would you remove other data type? Thank you. add(<T> element) : to ensure that just a T element is added. remove(Object o) : you can delete the T element even if it's a referenced by an Object reference. For instance : T t = new T(); Set<Short> set = new HashSet<Short>(); Short number = 2; set.add(number); Object numberObject = number; set.remove(numberObject) // it will

I am using Ruby 1.9.2 and the Ruby on Rails v3.2.2 gem. After my previous question on how to “nest” the inclusion of modules when using the Ruby on Rails ActiveSupport::Concern feature , I would like to understand where I should state methods added to a class by including "nested" modules in order to make these instance methods of that class. That is, I have the following: class MyClass < ActiveRecord::Base include MyModuleA end module MyModuleA extend ActiveSupport::Concern included do include MyModuleB end end module MyModuleB extend ActiveSupport::Concern included do # def my_method # ... #

Lets say I have 3 classes: class A { void do_A() { //Check object call hierarchy } } class B { void do_B() { A a; a.do_A(); } } class C { void do_C() { B b; b.do_A(); } } And then I call: C c; c.do_C(); How can i get the object call hierarchy from within A's do_A() ? I mean I want to get the references of object in a.do_A() (can be easily attained by this ), the reference of object b that called a.do_A() , and the reference of object c that called b.do_B() . I think this should be possible, because I can get the call hierarchy with call stack, so I'm sure I should be able to get some more

I stumbled on a feature of C# method resolution that I didn't notice before. Namely, when I explicitly implement an interface that supports a setter, and the implicit interface only offers a protected set, the compiler sensibly defers to the protected set when I call it. So I get most of the convenience of auto-implemented properties, but I can prevent accidental modification of fields by clients who shouldn't be changing them. As an example, virtual public DateTime CreatedOn { get; protected set; } virtual public DateTime? ModifiedOn { get; protected set; } #region IHaveUpdateDateFields