Java Discover: Grayscale

Home
About
Privacy Policy
Contact us

Java Discover is a Java technical blog mainly created for sharing our thoughts and programming question to the world of Java Programmers..

Grayscale image

Image 0 Comments

In our earlier tutorials we have seen about re-sizing image, drawing image border. On same way we will see about how to convert RGB image to Grayscale image using java code. When we talk...

Older Posts Home

Subscribe to: Posts (Atom)

Get updates in your email box

Complete the form below, and we'll send you our recent update.

Deliver via FeedBurner

Labels

Abstract Class ArrayList Callable Character Clone() Collections Comparator Core Java Exception File HashMap Image Interface Java 7 Patterns Queue Spring Security Stack String Threads TreeMap XML ZIP

Labels

@PropertySource @Value Abstract Class Add two numbers represented by linked lists using recursive Addition of 2 Linked List Advanced Encryption Standard AES AES algorithm Algorithm amazon interview questions Anagrams Apache POI Array Array rotate ArrayList Autoboxing Binary Search Binary Search Tree Binary Search Tree Height Binary Tree Binary Tree Lead node Binary Tree size BIOS boxing BST BST maximum height Bubble sort Cache caching in java Calendar Callable Captcha Case Insensitive HashMap Change File Modified Date and Time in Java Change File Permission Character Character Occurrences Character to String Checked Exception Checking Pangram or Not Class.forName ClassNotFoundException Clone() Clustering collect Collections collectors Comparable Comparator Concatenate List Concrete methods Condition Constructor Injection Consumer Interface Convert Date/Time for given Timezone - java Convert JSON to Java Object using Google Gson library Core Java count Count Duplicate elements in an array Count set bits in an integer Counting nodes in a tree? Yes how to get Binary Tree size Covariant Create Binary Tree Create singly linkedlist Custom Annotation with Example Custom Object Daemon Thread Data Structure DataTable Date and Time Decoding Decryption Deep copy delete node Dependency Injection Design Pattern Diameter of a Binary Tree Difference between IdentityHashMap and HashMap DNSJava Do you know DOM and SAX Parser Domain Name lookup Drive Details duplicate element Dynamic clustering Dynamic Programming Dynamic Programming - Find nth Fibonacci numberm Dynamic Programming Dynamic scaling Eclipse shortcuts Email Encoding Encryption entrySet() Enum.ordinal() Method in Java Enumeration Enumeration in java Environment equals equals() method Error Even Odd Numbers Excel Sheet Exception exception handling in JSP executable jar Executor framework ExecutorService External Iterator facebook interview questions Factory class Factory Pattern File File search Filter final finalize Finally Find loop in linkedlist Find next greater number with same set of digits Find Nth node Find the middle of a given linked list Find the Occurrences Of Each Character In a String Find the smallest window in a string containing all characters of another string (With smallest window) Finding Minimum Distinct Ids finding missing number in an array Finonacci Folder search Future Generics Google GSON google interview questions Google Maps API graph creation Grayscale Grayscale image hashcode HashMap Hashtable Hazelcast Heap Hibernate Hotspot JVM Options How to concatenate 2 List in Java How to create a graph using Java How to create simple and easy singly LinkedList in Java How to delete a Node from Linked List in java How to Design a simple LRU cache in Java How to detect loop in a linked list or not How to do Iterative Postorder Traversal in BST How to do Level order traversal in Binary Search Tree How to do simple matrix multiplication How to find integer pairs with given sum How to find pairs of number to get magic sum How to find the largest subarray with sum 0 How to get all Java TimeZone ID's How to get height of BST using recursive way How to get integer pairs with given sum from integer array How to get Maximum Subarray Sum in optimal way how to get only left child in BST How to Iterate Map key and value How to print singly linked list in reverse order How to reverse a number using stack? How to reverse a String without special characters IdentityHashMap Image Image border Image resizing immutable class Implement Stack in Java Implementing Queue in Java Inorder Inorder Predecessor and Successor of Binary Search Tree Insertion sort Interface Interface default method in Java 8 Interface extends another interface Interface extends another interface in Java Internal Iterator Interview Questions Inversion of Control Invert bits of a number IP Iterator Iterator Design Pattern JAR Java 7 Java 8 Java 8 - ForEach loop Java 8 - Stream and Filter Java 8 - StringJoiner with examples Java 8 API Java Interview Questions Java Memory Java Object to JSON Java Properties Java RegEx Java Timer java.sql.Date java.sql.Timestamp java.util.Date JAX-RS JAX-WS JDBC example JdbcDaoSupport JDBCTemplate join() jQuery jQuery notify JSON Date Format JSON to Java Object JsonSerializer JSP JSP Custom error page keySet() Lambda Expression LCS Least Recently Used Cache Leetcode: 463. Island Perimeter left nodes Level order traversal Linked List LinkedHashMap LinkedHashSet LinkedList List ListIterator Locale Log4j log4j API Log4j Appender Login Page Longest Common Subsequence Longest Common Subsequence (LCS) algorithm using Dynamic Programming in java Longest palindrome Sub-sequence Longest Substring without duplicate character loop LRU Mail API MailSender Marker Interface Matcher Maximum sub array Merge 2 Sorted Linked Lists merge List Method Reference middle node Mirroring Binary Tree Morgan Stanley Interview questions Multiply 2 numbers using recursion Multiply without * operator Multithreading in java Mutable Objects MySQL MySql commands and query MySQL import and export commands MySql Timewait mysqldump N'th node from the end of a Linked List next greater number NoClassDefFoundError notify() notifyAll() Object class Object reference by value Object Sorting ObjectInputStream ObjectOutputStream Odd even using ReentrantLock and Condition OS Details Pair of given sum Pangram Pangram or not Pass by reference Pass by value Pattern Patterns Permutation PID Postorder Pre-Authentication Predecessor Predecessor and Successor Preorder Print all leaf nodes of a Binary Tree from left to right Print all pairs with given sum Printing ODD EVEN PriorityBlockingQueue PriorityQueue Process QR Code Queue Quicksort read Object from file Read web page recursion ReentrantLock ReentrantLock and Condition Reflection Regular Expression Regular Expressions Remove all consecutive duplicates from the string Remove duplicate remove null from List RESTFull Reverse Linked List Reverse LinkedList Reverse number using Stack Reverse words in a given string Reverse words in a given String using recursion Rotate array by N elements rotate matrix Rotate matrix by clockwise Runnable scale-able data distribution platform Scanner class Segregate 0s and 1s in an array by looping only once Selection sort Semaphore sending email sending email using embedded image Separate Logger for specific classes or package Serializable Serialization Serve static resources from different locations using spring Setter Injection Shallow copy Simple SimpleDateFormat Smallest substring which contains all characters of other String Smallest window Smallest window with all characters of other string SMS SOAP Sorting Sorting array without loop Sorting Hashmap sorting hashmap based on values Sorting HashMap by Values including duplicate in Java Sorting Integer array without any sorting algorithm or loop Split the array into two equal Sum subarrays Split() Spring Spring Boot Spring Data Access Spring DataSoruce Spring IOC spring JDBC Spring Resource Loader Spring Security Spring with hibernate Stack Stack using Linked List Static Vs Volatile Stream API Streams String String Permutation using Recursion String Replace String Reverse String.join StringBuffer StringBuilder StringJoiner StringTokenizer subarray with sum 0 Successor synchronization Synchronized Map Tag Interface Thread pool ThreadLocal Threads Throw Throws TimeZone Traversal traverse the linked list only once to get middle node TreeMap TreeSet try catch Try-with-Resources Unboxing Unchecked Exception Unix commands user defined exception user defined Immutable Class values() Variable arity Vector Volatile wait() Web Services What are the Java TimeZone ID's words reverse Wrapper Classes write object to file XML XOR ZIP

Services

More Category

@PropertySource
@Value
Abstract Class
Add two numbers represented by linked lists using recursive
Addition of 2 Linked List
Advanced Encryption Standard
AES
AES algorithm
Algorithm
amazon interview questions
Anagrams
Apache POI
Array
Array rotate
ArrayList
Autoboxing
Binary Search
Binary Search Tree
Binary Search Tree Height
Binary Tree
Binary Tree Lead node
Binary Tree size
BIOS
boxing
BST
BST maximum height
Bubble sort
Cache
caching in java
Calendar
Callable
Captcha
Case Insensitive HashMap
Change File Modified Date and Time in Java
Change File Permission
Character
Character Occurrences
Character to String
Checked Exception
Checking Pangram or Not
Class.forName
ClassNotFoundException
Clone()
Clustering
collect
Collections
collectors
Comparable
Comparator
Concatenate List
Concrete methods
Condition
Constructor Injection
Consumer Interface
Convert Date/Time for given Timezone - java
Convert JSON to Java Object using Google Gson library
Core Java
count
Count Duplicate elements in an array
Count set bits in an integer
Counting nodes in a tree? Yes how to get Binary Tree size
Covariant
Create Binary Tree
Create singly linkedlist
Custom Annotation with Example
Custom Object
Daemon Thread
Data Structure
DataTable
Date and Time
Decoding
Decryption
Deep copy
delete node
Dependency Injection
Design Pattern
Diameter of a Binary Tree
Difference between IdentityHashMap and HashMap
DNSJava
Do you know
DOM and SAX Parser
Domain Name lookup
Drive Details
duplicate element
Dynamic clustering
Dynamic Programming
Dynamic Programming - Find nth Fibonacci numberm Dynamic Programming
Dynamic scaling
Eclipse shortcuts
Email
Encoding
Encryption
entrySet()
Enum.ordinal() Method in Java
Enumeration
Enumeration in java
Environment
equals
equals() method
Error
Even Odd Numbers
Excel Sheet
Exception
exception handling in JSP
executable jar
Executor framework
ExecutorService
External Iterator
facebook interview questions
Factory class
Factory Pattern
File
File search
Filter
final
finalize
Finally
Find loop in linkedlist
Find next greater number with same set of digits
Find Nth node
Find the middle of a given linked list
Find the Occurrences Of Each Character In a String
Find the smallest window in a string containing all characters of another string (With smallest window)
Finding Minimum Distinct Ids
finding missing number in an array
Finonacci
Folder search
Future
Generics
Google GSON
google interview questions
Google Maps API
graph creation
Grayscale
Grayscale image
hashcode
HashMap
Hashtable
Hazelcast
Heap
Hibernate
Hotspot JVM Options
How to concatenate 2 List in Java
How to create a graph using Java
How to create simple and easy singly LinkedList in Java
How to delete a Node from Linked List in java
How to Design a simple LRU cache in Java
How to detect loop in a linked list or not
How to do Iterative Postorder Traversal in BST
How to do Level order traversal in Binary Search Tree
How to do simple matrix multiplication
How to find integer pairs with given sum
How to find pairs of number to get magic sum
How to find the largest subarray with sum 0
How to get all Java TimeZone ID's
How to get height of BST using recursive way
How to get integer pairs with given sum from integer array
How to get Maximum Subarray Sum in optimal way
how to get only left child in BST
How to Iterate Map key and value
How to print singly linked list in reverse order
How to reverse a number using stack?
How to reverse a String without special characters
IdentityHashMap
Image
Image border
Image resizing
immutable class
Implement Stack in Java
Implementing Queue in Java
Inorder
Inorder Predecessor and Successor of Binary Search Tree
Insertion sort
Interface
Interface default method in Java 8
Interface extends another interface
Interface extends another interface in Java
Internal Iterator
Interview Questions
Inversion of Control
Invert bits of a number
IP
Iterator
Iterator Design Pattern
JAR
Java 7
Java 8
Java 8 - ForEach loop
Java 8 - Stream and Filter
Java 8 - StringJoiner with examples
Java 8 API
Java Interview Questions
Java Memory
Java Object to JSON
Java Properties
Java RegEx
Java Timer
java.sql.Date
java.sql.Timestamp
java.util.Date
JAX-RS
JAX-WS
JDBC example
JdbcDaoSupport
JDBCTemplate
join()
jQuery
jQuery notify
JSON Date Format
JSON to Java Object
JsonSerializer
JSP
JSP Custom error page
keySet()
Lambda Expression
LCS
Least Recently Used Cache
Leetcode: 463. Island Perimeter
left nodes
Level order traversal
Linked List
LinkedHashMap
LinkedHashSet
LinkedList
List
ListIterator
Locale
Log4j
log4j API
Log4j Appender
Login Page
Longest Common Subsequence
Longest Common Subsequence (LCS) algorithm using Dynamic Programming in java
Longest palindrome Sub-sequence
Longest Substring without duplicate character
loop
LRU
Mail API
MailSender
Marker Interface
Matcher
Maximum sub array
Merge 2 Sorted Linked Lists
merge List
Method Reference
middle node
Mirroring Binary Tree
Morgan Stanley Interview questions
Multiply 2 numbers using recursion
Multiply without * operator
Multithreading in java
Mutable Objects
MySQL
MySql commands and query
MySQL import and export commands
MySql Timewait
mysqldump
N'th node from the end of a Linked List
next greater number
NoClassDefFoundError
notify()
notifyAll()
Object class
Object reference by value
Object Sorting
ObjectInputStream
ObjectOutputStream
Odd even using ReentrantLock and Condition
OS Details
Pair of given sum
Pangram
Pangram or not
Pass by reference
Pass by value
Pattern
Patterns
Permutation
PID
Postorder
Pre-Authentication
Predecessor
Predecessor and Successor
Preorder
Print all leaf nodes of a Binary Tree from left to right
Print all pairs with given sum
Printing ODD EVEN
PriorityBlockingQueue
PriorityQueue
Process
QR Code
Queue
Quicksort
read Object from file
Read web page
recursion
ReentrantLock
ReentrantLock and Condition
Reflection
Regular Expression
Regular Expressions
Remove all consecutive duplicates from the string
Remove duplicate
remove null from List
RESTFull
Reverse Linked List
Reverse LinkedList
Reverse number using Stack
Reverse words in a given string
Reverse words in a given String using recursion
Rotate array by N elements
rotate matrix
Rotate matrix by clockwise
Runnable
scale-able data distribution platform
Scanner class
Segregate 0s and 1s in an array by looping only once
Selection sort
Semaphore
sending email
sending email using embedded image
Separate Logger for specific classes or package
Serializable
Serialization
Serve static resources from different locations using spring
Setter Injection
Shallow copy
Simple
SimpleDateFormat
Smallest substring which contains all characters of other String
Smallest window
Smallest window with all characters of other string
SMS
SOAP
Sorting
Sorting array without loop
Sorting Hashmap
sorting hashmap based on values
Sorting HashMap by Values including duplicate in Java
Sorting Integer array without any sorting algorithm or loop
Split the array into two equal Sum subarrays
Split()
Spring
Spring Boot
Spring Data Access
Spring DataSoruce
Spring IOC
spring JDBC
Spring Resource Loader
Spring Security
Spring with hibernate
Stack
Stack using Linked List
Static Vs Volatile
Stream API
Streams
String
String Permutation using Recursion
String Replace
String Reverse
String.join
StringBuffer
StringBuilder
StringJoiner
StringTokenizer
subarray with sum 0
Successor
synchronization
Synchronized Map
Tag Interface
Thread pool
ThreadLocal
Threads
Throw
Throws
TimeZone
Traversal
traverse the linked list only once to get middle node
TreeMap
TreeSet
try catch
Try-with-Resources
Unboxing
Unchecked Exception
Unix commands
user defined exception
user defined Immutable Class
values()
Variable arity
Vector
Volatile
wait()
Web Services
What are the Java TimeZone ID's
words reverse
Wrapper Classes
write object to file
XML
XOR
ZIP

Grayscale image

Get updates in your email box

Recent Posts

Labels

Category

Labels

Services

More Category

Followers