Description
The Picture.Pixels method lets you retrieve and set the color of a given image pixel. The color is specified by the integer value. Its low-order byte holds the value of the red component, the subsequent bytes hold values of green and blue components respectively.
Declaration
PictureObj.Pixels(X, Y)
| Read-Write Property | Integer |
| PictureObj | An expression, variable or parameter that specifies a reference to a Picture object | |||
| X | [in] | Required | Integer | |
| Y | [in] | Required | Integer | |
Applies To
The property is applied to the following object:
Parameters
The property has the following parameters:
X
The X coordinate of the image pixel.
Y
The Y coordinate of the image pixel.
Property Value
The integer value holding the RGB components of the pixel color. For a list of predefined color constants and instructions on how to calculate custom color values, see Working With Colors.
| Note: | Intel CPUs use the little endian convention for data. That is, in fact, the color is stored as BGR in memory. |
Example
The following example demonstrates how to create an empty Picture object using the Utils.Picture method and how to work with images using methods of the Picture object.
JavaScript
function Test1()
{
var Pict, NewPict, x, y;
// Creates a new empty Picture object
Pict = Utils.Picture;
// Loads the image from a file and posts it to the log
Pict.LoadFromFile("D:\\Data\\my_image.png");
Log.Picture(Pict);
// Obtains the bounds of the new image
x = Pict.Size.Width - 10;
y = Pict.Size.Height - 10;
// Obtains the new Picture object containing the specified rectangular area of the loaded image
NewPict = Pict.GetRect(0, 0, x, y);
// Changes the color of the top left pixel of the new image to the red color
NewPict.$set("Pixels", 0, 0, clRed);
// Saves the obtained picture to the new file and posts the image to the log
NewPict.SaveToFile("D:\\Data\\my_new_image.png");
Log.Picture(NewPict);
}
JScript
function Test1()
{
var Pict, NewPict, x, y;
// Creates a new empty Picture object
Pict = Utils.Picture;
// Loads the image from a file and posts it to the log
Pict.LoadFromFile("D:\\Data\\my_image.png");
Log.Picture(Pict);
// Obtains the bounds of the new image
x = Pict.Size.Width - 10;
y = Pict.Size.Height - 10;
// Obtains the new Picture object containing the specified rectangular area of the loaded image
NewPict = Pict.GetRect(0, 0, x, y);
// Changes the color of the top left pixel of the new image to the red color
NewPict.Pixels(0,0)= clRed;
// Saves the obtained picture to the new file and posts the image to the log
NewPict.SaveToFile("D:\\Data\\my_new_image.png");
Log.Picture(NewPict);
}
Python
def Test1():
# Creates a new empty Picture object
Pict = Utils.Picture;
# Loads the image from a file and posts it to the log
Pict.LoadFromFile("D:\\Data\\my_image.png")
Log.Picture(Pict)
# Obtains the bounds of the new image
x = Pict.Size.Width - 10
y = Pict.Size.Height - 10
# Obtains the new Picture object containing the specified rectangular area of the loaded image
NewPict = Pict.GetRect(0, 0, x, y)
# Changes the color of the top left pixel of the new image to the red color
NewPict.Pixels[0,0] = clRed
# Saves the obtained picture to the new file and posts the image to the log
NewPict.SaveToFile("D:\\Data\\my_new_image.png")
Log.Picture(NewPict)VBScript
Sub Test1
Dim Pict, NewPict, x, y
' Creates a new empty Picture object
Set Pict = Utils.Picture
' Loads the image from a file and posts it to the log
Call Pict.LoadFromFile("D:\Data\my_image.png")
Log.Picture(Pict)
' Obtains the bounds of the new image
x = Pict.Size.Width - 10
y = Pict.Size.Height - 10
' Obtains the new Picture object containing the specified rectangular area of the loaded image
Set NewPict = Pict.GetRect(0, 0, x, y)
' Changes the color of the top left pixel of the new image to the red color
NewPict.Pixels(0,0)= clRed
' Saves the obtained picture to the new file and posts the image to the log
Call NewPict.SaveToFile("D:\Data\my_new_image.png")
Log.Picture(NewPict)
End Sub
DelphiScript
procedure Test1;
var Pict, NewPict, x, y;
begin
// Creates a new empty Picture object
Pict := Utils.Picture;
// Loads the image from a file and posts it to the log
Pict.LoadFromFile('D:\Data\my_image.png');
Log.Picture(Pict);
// Obtains the bounds of the new image
x := Pict.Size.Width - 10;
y := Pict.Size.Height - 10;
// Obtains the new Picture object containing the specified rectangular area of the loaded image
NewPict := Pict.GetRect(0, 0, x, y);
// Changes the color of the top left pixel of the new image to the red color
NewPict.Pixels(0,0) := clRed;
// Saves the obtained picture to the new file and posts the image to the log
NewPict.SaveToFile('D:\Data\my_new_image.png');
Log.Picture(NewPict);
end;
C++Script, C#Script
function Test1()
{
var Pict, NewPict, x, y;
// Creates a new empty Picture object
Pict = Utils["Picture"];
// Loads the image from a file and posts it to the log
Pict["LoadFromFile"]("D:\\Data\\my_image.png");
Log["Picture"](Pict);
// Obtains the bounds of the new image
x = Pict["Size"]["Width"] - 10;
y = Pict["Size"]["Height"] - 10;
// Obtains the new Picture object containing the specified rectangular area of the loaded image
NewPict = Pict["GetRect"](0, 0, x, y);
// Changes the color of the top left pixel of the new image to the red color
NewPict["Pixels"](0,0)= clRed;
// Saves the obtained picture to the new file and posts the image to the log
NewPict["SaveToFile"]("D:\\Data\\my_new_image.png");
Log["Picture"](NewPict);
}
See Also
About Region Checkpoints
Compare Method
Difference Method
Find Method
Working With Colors