Laplace filter |

Laplace filter

Introduction

Used instruments: Laplace transformation filter.

Objects of examination:halftone image (Monochrome.jpeg).

Task: to put in light and to select the borders of objects in the image, and to increase the sharpness.
 
NOTE: Tutorial does not contain the information on all the possibilities of the application. Here the optimal way of solving the task set is offered.
 
 

Step 1. Launch of the application

Launch the Altami Studio application. In order to launch the application, use the Altami Studio shortcut at the workbench or the menu item StartPrograms→Altami LtdAltami Studio 3.0. Besides, the application can be launched from the folder where the application was installed (usually it is C:\Program Files\Altami Ltd\Altami Studio 3.0\).
 
 

Step 2. Opening the file

In Altami Studio application open the file with the image, in order to do that use the menu item FileOpen and select the Monochrome.jpeg file. It is in Tutorials\Picturesfolder which is in the main folder of the application. Click the Open button.
 
The following image shall appear in the application window:
 
Opened document in Altami Studio application.

Picture 1. Opened document in Altami Studio application

 
 

Step 3. Adding the Laplace filter to the document

In order to use the Laplace filter, call the Filters panel through the menu FiltersFilters.
 
Opening the Filters panel

Image 2. Opening the Filters panel

 
Then select in the menu item FiltersGray transformationsLaplace.
 
Adding the Laplace transformation filter
Image 3. Adding the Laplace transformation filter

 
 

Step 4. Setting the Laplace transformation filter

By selecting the Laplace filter at the Filters panel in its lower part there appears a window with the settings of this filter.
 
Laplace transformation filter

Image 4. Laplace transformation filter

 
Indicate the value of the size parameter as 5.
 
The result of the Laplace transformation
Image 5. The result of the Laplace transformation