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AlphaPlugins Laplacian Blend plug-in for Adobe Photoshop

Filter pluginsAdobe After Effects CS3 Filters
AlphaPlugins LaplacianBlend


AlphaPlugins Laplacian Blend - the simple free plug-in for Adobe Photoshop that lets mix two pictures with a sophisticated algorithm and obtain more qualitative results than traditional blending tools allow.

The Laplacian Blending lets differently mix different parts of source images. Parts with low-frequently details will be mixed strongly, parts with high-frequently details be mixed less. As result two images are looked as interwoven and mutual permeated each to each.

The Laplacian Blending method is very helpful for accurately mixing images contains so natural objects like grass, hairs, bushes, human faces and etc.

The Laplacian Blending is known method and it can be found in special math libraries. But for Photoshop users this method was not available previously. AlphaPlugins introduces a new absolutely freely plug-in what makes the amazing Laplacian Blending math available and for Photoshop users to.

Photoshop CS plug-insPremiere CS plug-ins

Main Features

Unique, convenient and powerful tool for Laplacian blending of two images   
 Can organically work in multilayer Photoshop's composition
Support native Photoshop image modes such as Grayscale, RGB, CMYK   
   Modern and powerful user interface for efficient work
The plug-in is free.  

Adobe Photoshop FiltersPhotoshop Plug-ins
Quick Start

So, we supposed what you already have the plug-in installed. If not yet then please read this section.Now we want to mix two images with help of Laplacian Blend algorithm.

Source image for blending

Choose a two image what you will blend with Laplacian Blending.
Source image for Laplacian Blending

Source images in Photoshop composition Photoshop layers list

Place source images in different Photoshop's layers. You should have at last two layers in Photoshop's composition.

We will mix a selected layer and one underlie. Also, we should have a selected area. It will be used as a border mask for Laplacian blending.

When you prepared two images in different layers and a selection mask then go to Photohsop's menu Filter->AlphaPlugins->AlphaPlugins Laplacian Blend.
You will see the follow plug-ins dialog window.

Plug-in UI screenshot

You can resize the plug-ins window as needed. Resizing the window also resizes the preview area. You can increase or decrease preview scale by pressing:
  • plus button or minus button buttons below the preview pane
  • Ctrl (Cmd on Mac) "+" and "-" keys
  • Ctrl (Cmd) + "0" or "1" keys
To change the area shown in the preview pane, look at the small picture in upper left, and move the small square to a different area on the image. Or just drag the preview area with holding left mouse button

Under the navigation area there are few plug-ins controls. With them help you can adjust parameters of Laplacian blending.

When you will finish to adjust plug-in's parameters then just press OK button to apply the plug-in on source composition.

result of Laplacian blending

Photoshop CS4 FiltersAfter Effects CS3 Filters

Adobe Photoshop FiltersPhotoshop Plug-ins
Plug-in's parameters

The plug-in has a small number of parameters and it will be easily to describe these here.

Plug-ins parameters Underlie layer for blending - in this menu you can choose an underlie layer what will be used in Laplacian blending. The Photoshop composition may contain more than two layers.

Number of levels in Laplacian pyramid - the number of levels in Laplacian pyramid. Different levels of Laplacian pyramid will be mixed with different blur value.

Gaussian blur value - the Gaussian blur aperture width.

Fill Alpha channel - you can fill the Alpha channel of upper layer and make it opaque or leave it as is.

If you look at sliders when you can notice what some sliders have blue color and some black. The difference is what sliders with blue color allow to setup range of adjustable value. It needs just click the right mouse button on the slider to launch a range setup dialog.
 Range Editor

Photoshop CS4 FiltersAfter Effects CS3 Filters

Adobe Photoshop FiltersPhotoshop Plug-ins
Installation and Registration

Windows OS Windows Installation.

Installing AlphaPlugins Laplacian Blend is very easy.

  • Download the LaplacianBlendInstaller.exe file from here.

  • Launch this file and follow the instructions.

    ExclamationIf you have both 32bit and 64bit versions of Photoshop, then please, attend what version of plug-in you would like to install: 32bit or 64bit.

  • Install LaplacianBlend plug-in

  • During installation the installer will attempt to automatically detect all installed versions of Photoshop, and will offer a variant of target path. If you have a version of Photoshop Creative Cloud then you can install plug-in into a common pug-ins folder:
    C:\Program Files\Common Files\Adobe\Plug-Ins\CC
    In this case, you should not reinstall plug-in if you will install future Photoshop's versions. Else, you always can install plug-in into a local plug-ins folder i.e.:
    C:\Program Files\Adobe\Adobe Photoshop CC2020\Plug-ins. .

  • Install LaplacianBlend plug-in

  • Click the Next button, and complete the installation.

 Macintosh OS Macintosh Installation.

When installing the AlphaPlugins Laplacian Blend plug-in for Macintosh, our smart installer will locate the correct installation path for you - easily and automatically.

  • Download the file from here.

  • then, unzip it.

  • Launch the LAplacianBlendInstaller application and follow the instructions.

  • Install LaplacianBlend plug-in

  • The plug-in finds all installed versions of Photoshop. You should choose one. If you have a version of Photoshop Creative Cloud then you can install plug-in into a common plug-ins folder:
    /Library/Application Support/Adobe/Plug-Ins/CC
    In this case, the plug-in will be available for all versions of Photoshop CC include future. As variant you can install plug-in into a local plug-ins folder i.e.:
    /Application/Adobe Photoshop CC2020/Plug-ins
    or you can press "Custom" button and browse any other appropriate folder of your choice.

  • Install plug-in

  • Click the "Next" button and all the necessary files will be installed in the chosen folder.

Information To install the plug-in in Adobe Photoshop Elements, locate the plug-in folder specifically for that image editor.

Information It is recommended to setup properly permissions for AlphaPlugins folder where the plug-in is installed.
How to change folder permissions you can read i.e. here.


The AlphaPlugins LaplacianBlend plug-in is absolutely free and you can use it without any charge and without any limitation. But if you would like to say "thank" to author for his labor then you can buy the plug-in by a symbolical price. Then you will be able to register the plug-in.

You will automatically receive a serial number for your copy of AlphaPlugins Laplacian Blend immediately following your purchase. There are two ways that you can register your copy of the plug-in: Online, and Offline.

Online Registration.

If you are connected to the Internet, then Online registration is the simplest way to register your copy of plug-in. After launching AlphaPlugins Laplacian Blend, you will see a registration dialogue box. Just select the Online registration option; insert your name; enter the serial number you received; and, click the Register button. The AlphaPlugins Laplacian Blend plug-in will automatically connect with our registration server to complete the registration process, sending you a confirmation message that the registration of your plug-in has been successful. Then, just click the Close button - registration is complete.

Information If you are currently operating with an Internet firewall in place, it is recommended that you switch it off temporarily during the registration process.

Registration LaplacianBlend plug-in

Offline Registration.

Even if you do not use an Internet connection with your computer, you can still register your AlphaPlugins Laplacian Blend plug-in. Contact us to obtain an offline answer (for the Offline registration process) if you cannot connect to the Internet - or if you are determined to keep your photo-editing computer isolated from any direct connection with the Internet. The Offline Registration Number is a numerical ID which will be valid for a few days: to complete your registration, just select the Offline option in the registration dialogue box; insert your Name, Serial Number, and Offline Answer; then click Register to complete the registration process, and Close the registration dialogue window.

Photoshop CS4 FiltersAfter Effects CS3 Filters

Adobe Photoshop FiltersPhotoshop Plug-ins
System Requirements

MS Windows Windows

  • Windows OS (32/64Bit), Windows 7, Windows 8, 10, 11 or later

  • 2 GHz processor or higher

  • At least 2Gb of RAM or more

  • 1024 x 768 display or bigger

  • Adobe Photoshop CS5 - CC2023 or later

OSX Macintosh

  • Mac OS X 10.7 or higher

  • Intel or M1 processor

  • At least 2Gb of RAM or more

  • 1024 x 768 display or bigger

  • Adobe Photoshop CS5 - CC2023 or later

Photoshop CS4 FiltersAfter Effects CS3 Filters

Adobe Photoshop FiltersPhotoshop Plug-ins

The AlphaPlugins Laplacian Blend is a simple and freely plug-in what allow perform qualitative and sophisticate blending of two images with saving details and counting different frequencies of pictures elements.

Photoshop CS4 FiltersAfter Effects CS3 Filters

Adobe Photoshop FiltersPhotoshop Plug-ins
See Also

See also another our FREE plug-in what uses Laplacian pyramid math to qualitative increase image details and obtain a pseudo HDR effect.

Photoshop CS4 FiltersAfter Effects CS3 Filters

Copyright, 2023, AlphaPlugins, LLC.
Author: Maxim Chernousov.
You can find more information about LaplacianBlend plug-in. Please, visit LaplacianBlend's product page on our site. There you can find freshest version of this product. Also you can find tutorials and samples for our products.