Takes current image as a height map & shines a light on it, returning the intensity of reflected rays as another image (similar to Emboss)Adds “noise” to a selection
Removed by author due to possible copyright abuses
Color Correction for Underwater Photography - Pateman 6. Manipulating raw data within the Raw palette than available JPEG image options. Most digital cameras allow you to customize white balance settings. There are many white balance defaults already programmed in digital cameras but underwater photographers can benefit. If you need a free Photoshop alternative that has all photo editing functions that Adobe Photoshop offers, I recommend you to read the following review of 5 best FREE Photoshop alternatives: GIMP, Photo Pos Pro, Paint.NET, Pixlr Editor, and Adobe Photoshop Express. These photo editing apps offer basic image editing functions as red-eye removal, color.
Recolors every pixel a different amount based on how similar it is to the secondary color.The most awesome collection of tools ever produced for PDN. Note original post date!Removes antialiasing. Useful prior to featheringAlign your drawing on the canvas OR to your selectionConvert color to transparency & vice versa.Turn an image into an alpha mask. If the image has color, it is converted to greyscale.
(Simon Brown's plugin pack)
Draw an alpha-mask directly onto an imageConverts a white/black background into transparency. Recognizes shadows and makes them semi-transparent.
(Simon Brown's plugin pack)
Filetype: Open and save animated GIFs & PNGs, one frame into each layer.
(Filetype)
ASCII art generator. Transform your image into an ascii art masterpiece!
(Filetype)
Support for loading RAW filesUse to smooth edges, keeping them clear, not blurredAllows you to export an image as ascii artNumerous color & distort effectsAverages the color over a selectionGenerate barcodes from user inputReduces aliasing without altering the sharpness of the edge.
(Tanel's Plugin Pack)
Color and tone enhancement tools (levels, curves) in a simple intuitive package
(Superseded by a later release)
Applies a bevelled edgeChanges an image into black and white , and changes brightness into transparency.
(Tanel's Plugin Pack)
Convert image to B&W/greyscale, with loads of options.Convert colored image to b&w/greyscale. Many options.
(Filetype)
File type plugin for loading Blizzard Picture files (*.blp). Requires Microsoft Visual C++ 2008 SP1 Redistributable Package. Click here to download.
(Note: semi-broken)
Remove green screen / blue screen (background) from an image.
Draw a border around image or selection with your primary color
Draws a variety of borders and shapes
(Jesse Chunn Plugin Pack)
Creates bricks (with mortar) patterns
Create beautiful buttons with or without text & symbols.
Dieses Plugin findet man nach der Installation unter Effekte >> Wiedergabe >> Buttons
Mehr Informationen zum Button-Plugin
Correct the barrel or pincushion distortions in digital photos
(Simon Brown's plugin pack)
Automates the process of creating repeat brush strokes for Custom Brushes pluginRenders x,y sized cells whose edges are entirely within a given selection
(Illnab1024's Plugins)
Mix the Red, Green, and Blue channels separately as you convert an image to greyscale
(Simon Brown's plugin pack)
Modify colors by channelAdjust the white balance of a picture based on the white and black patch a standard color chart in the sceneDraws a checkboard similar to the one used by PDN to show transparency.Draws chessboard + position from scratch or by parsing a FEN string. Requires Chess Merida font.For removing the green background from an image. Updated to include Blue
(Now a built-in effect)
(Updated and maintained by BoltBait)
Internal PDN tool for creating your own plugins. Code & apply your own effects on the fly.
Dieses Plugin findet man nach der Installation unter Effekte >> Advanced >> Code Lab
Channel mixer with addition and scaling.Counts the number of colors (or number of times a color is used) in an image.Counts the number of colors (or number of times a color is used) in an image.
(Included PDN v?)
(Pyrochild's Plugins)
Uses an existing image as a color template to recolor your image. Works best on photos.Make fine color adjustmentsColor filter with the ability to fine tune the color and alpha channels
(Plugin Pack)
Color Target v1.3 retains pixels of a similar color and brightness, all other pixels are made transparent. Color Stretch v1.0 stretch color values of pixels within specified threshold limits. Target Panel v1.0 advanced color manipulation tool with multiple input/output slidersAdjust the alpha level of your selected color while similar colors are djusted as well.
(Evan's Effects 1.1)
Adjust hue and saturation by setting range and conditions.
(Simon Brown's plugin pack)
provides a brush that will only function when a pixel is within the given min/max threshold.Modifies each pixel by comparison to neighbouring pixels. 3x3 matrix is fully configurable.
(Simon Brown's plugin pack)
Provides an interface for constructing an HTML image map
A more powerful version of Curves adjustment that comes with Paint.NET
(Superseded by a later release)
use CustomBrushesMini instead.
(Superseded)
(Simon Brown's plugin pack)
Draw with customized brushes. Replaces previous incarnations of Custom BrushesAdd a pre-created frame to your image
(Simon Brown's plugin pack)
apply a custom texture to an image while maintaining the saturation
(Illnab1024's Plugins)
(Included PDN 3.1+)
Enables DDS file loading & saving
(Simon Brown's plugin pack)
Allows you to preview potential images as a background
(External resource)
Diagnose the reason effects and filetypes may not be working.Renders diagonal lines, brushwidth, antialias & angle configurabledistorts an image based on the light values of the mask
(Included PDN 2.70+)
Bulge, Polar Inversion, Tile Reflection & Twist
(BoltBait's Plugin Pack)
Draws closed polygons & stars.
(Included in PDN 3.07+)
(Superseded by a later release)
Framework to ease development of PDN effects. Full source code & 13 demo effects:• Average & Smart blurs• Drop Shadow• Duotone Light • Duotone Ink on Paper• Fade edge• Cyanotype• Sepia 2• Grayscale on Colored Paper• Monochrome Ink on Paper• Darken• Lighten• Negative
(Superseded by new release)
Use PDNWatermark instead
(Superseded by new release)
(Superseded by new version)
(Superseded by a later release)
(Plugin pack)
Blurs: Simplify, Splinter, Surface Blur, True Blur, Unfocus+. Color: Color Filter, Color Channel Flip/Rotate, Color Tint, Extract Channel, Filtered Black and White, Invert Intensity, Single Hue, Solarize, Threshold, Vitrious, White Balance. Distorts: Crystalize, Dents, Drop Ripple, Glass Blocks, InsideOut, Lens, MultiView, Polar Inversion Plus, Ripple, Wobble. Photo: Vignette. Renders: Dither, Lattice, Textile, Weave. Stylize: Halftone, Seismograph
(Superseded by new version)
Fast Blur, Dither - Floyd-Steinberg HalfTone, Dither - Atkinson HalfTone
Round off square corners. requires the .NET framework 3.5
(Toli's Effects)
Emboss/Egnrave effect with configurable strength.
Stretch & DotAtCenter?
Dilatation is a simple way to remove scratches and noise from an uniform background. Erode is similar to the Median Blur effect.
(Plugin pack)
Effects: Mirror over line, Conditional Hue/Saturation, Octagonal/Quadrilateral reshape/matte, 3D Object (BETA)
Configurable radial blur
improved zoom blur effect
(BoltBait's Plugin Pack)
softens the edges of objects that you are combining to make composite pictures
Fill parts deleted from an image based on the surroundings
(Simon Brown's plugin pack)
Give your pictures a Film Noir style.
Render flames with this single-effect implementation of the fire effect
(BoltBait's Plugin Pack)
Turn a black & white gradient into flames
(Simon Brown's plugin pack)
for rendering fire/flames
(Simon Brown's plugin pack)
select a flag & render it into the selection (needs a working internet connection)
Flips the selected pixels horizontally or vertically
(Superseded by 'Flip')
Apply Floyd-Steinberg dithering
Applies filter to make image look shiny & metallic.
(Jesse Chunn Plugin Pack.)
Blurs from a given focal point in an image
(Included in PDN v?)
Create and configure the mandelbrot fractal
(Ed Harvey Effects)
Creates copies of the base image, each shifted from the original position by a given amount. The copies are then averaged together
Use Color to Alpha Advanced instead Make an image transparent in respect of the chosen color.
Applies a chrome or metallic sheen to an image.
(Plugin pack)
Alias, Color Trimming, Input to Output, Brightness/ Darkness to Alpha, Invert Alpha, About Silhouette Plus
(Toli's Effects)
Mirror selection horizontally, vertically, or over a diagonal. Rotate a selection. This texture plugin replaces the selection (or the active layer if no selection) with colourful concentric rings
Convert image to monochrome (black, white & color supported)
(Tims Effects)
Converts a drawing into a mosaic pattern, using the Secondary colour as the adhesive or grout between the tesserae.
Paint with whole collections of images! Creates a unique non repeatable pattern of images.
Create / edit a multi-color Gradient
Mehr Informationen zum Multi-Color-Gradient Plugin
Height field (gray scale) to normal map (creates a much better illusion of height)
Normalize stretches the histogram (entire color range is used), egalize modifies the colors, so they are used in the same amount.
Calculate the first order derivatives of the image (think: emboss). Light angle is adjustable.
(Superseded)
Use Wet Floor Reflection instead
(MadJik's Plugin Pack)
Incline texts or images, vertically horizontally or both
Reshape the image or crop to an arbitrary quad or octagonal region
(Simon Brown's plugin pack)
Applies and aged look to your image
(filetype)
integrates OptiPNG with Paint.NET, optimizes PNGs to make them smaller
Remove/change a color (with a tolerance). Useful for changing background/text color
(Pyrochild's Plugins)
Place a border around object/area. Note: object must be surrounded by transparency.
Outline the outside/inside of a selection
creates a curl on a corner of your image
(External resource)
Simplifies plugin installation by adding “install” option to right click menu on plugin ZIP file.
(Removed due to Licenses.)
Add or remove plugins from the Paint.NET/Effects folder
Programm läuft extra, nicht aus PDN
(External resource)
adds the Paint.NET search engine to Firefox
Extracts the palette from the current image & saves it to (or creates) a paint.net palette file
(External resource. Note: Beta)
Converts and edits palettes. Requires Windows XP & .NET framework 3.5
(Magical Plugins Megapack)
Allows the moving of selection, vertically, horizontally or both
(BoltBait's Plugin Pack)
Pastel/Water color filter.
Load & save PCX images
(External resource)
View information about a PDN file (dimensions, number of layers and the version of PDN used to save the image)
(Superseded by new version)
(External resource)
PDN benchmarking utility (speedtest)
Programm läuft extern, muss im gleichen Verzeichnis installiert sein , wie PDN
Ergebnis:
PdnBench v3.20.2904.35608 Running in 32-bit mode on Windows 5.1.2600.131072 Service Pack 2 Workstation x86 Processor: 1x 'AMD Athlon(tm) XP 2500+' @ ~1832 MHz Memory: 1535 MB ... Total time: 309146 milliseconds
(Simon Brown's plugin pack)
Add watermarks to your image
Takes an image and 'flood-fill' it into the selection region, repeating it over and over.
(Filetype)
plugin for loading and saving Photoshop files.
(Simon Brown's plugin pack)
adds a frame to an image that is a pixelated version of the image itself
(Note: beta)
Provides a simplified programming language in which to create effects/plugins.
(Illnab1024's Plugins. (v1.1))
Similar to the ‘bulge’ effect but in the horizontal plane instead of the vertical
(Magical Plugins Megapack)
Translate image from rectangular to polar coordinates and vice versa
Overlays a frame with the correct size ratios to form a polariod
(Tools menu)
A line tool - which will draw another line from the last drawing postion to the current position.
(Included PDN 3.1+)
Soften portraits to look more professional
Enhanced posterize effect that first converts the color into HSV space, truncates the values, then converts back to RGB
(Note: beta)
Warp images by appearing to bend their surface
Calculates the difference between the pixel and primary color. The more they are equal, the more transparency will result
Filter creates a variety of psychedelic color effects
(Plugin pack)
Effects: Curves+, Borders ‘N Shapes, Gradient Bars, Film, Jitter, Outline Object, Stitch, Scriptlab, Scriptlab Batch processor, Gradient Mapping, Splatter, Pixelate+, Color Match, Random Effect, Random Shape Fill, Smudge.
(MadJik's Plugin Pack)
Predefined formulas (sinusoid curves) define and mix Red, Green, Blue colors.
Fills selection with a rainbow colored gradient
(MadJik's Plugin Pack)
Rainbow twist the three basic color Red, Green, Blue.
(Pyrochild's Plugins)
Chooses a random plugin (or built-in effect), and renders it with randomized settings
(MadJik's Plugin Pack)
Create/add straight & curved lines Draw horizontal/diagonal maze with configurable size, wall chance, brush width & more. Draws random (predefined) shapes on the canvas. 17 shape modes & 9 color modes plus many options.
(Filetype)
Dcraw based raw file reader
(Filetype)
decode RAW camera images and make them available for use in Paint.NET
(filetype)
dcraw based RAW file reader
(Included PDN v3.22+)
Reduces the noise in an image while maintaining detail
(Simon Brown's plugin pack)
Note: Beta. Alternative text-tool that includes editable text. Works by using Steganography to store the details of the text in the text layer. Steht nach der Installtion unter Effekte >> Tools >>Editable Text-Tool Muss als neue Ddatei gepeichert werden DLL ist EditableText.dll Create mirror/water type reflections of an existing image Steht nach der Installtion unter Effekte >> Wiedergabe >>Reflection Muss als neue Ddatei gepeichert werden DLL ist dS810.Spiegeleffekt.dll
Draws a HSV color wheel, centered in the current selection
Conversion between RedGreenBlue and CyanMagentaYellowblacK color formats
(Tims Effects)
Uses the Primary and Secondary colours and the current brush width to draw a rectangle with rounded corners into the current selection.
(Superseded by later release)
Takes a pixelated image and breaks the blocks into RGB components. Requires Pixelate
(Pyrochild's Plugins)
Create compilations of other Paint.NET effects, adjustments, and plugins. You can save, load, and share your scripts. Includes Batch Processor Makes a given image seamlessly repeatable.
(Magical Plugins Megapack)
An updated version of BoltBait’s original Seamless Texture Helper. Create textures with no apparent edge when tiled.
(Mini pack)
. Feather = fade edge
Spread out or push together colors close to the selected one
Apply toning corrections. With blending mode selector and alpha channel support. Similar to Advanced Color Replacement
(Tanel's Plugin Pack)
Fix excessively contrasty photos, by brightening shadows and/or darkening highlights
Generates shadows with angle and transparency options. Like Google Map.
Add 'tv snow' effect to the shapes
Wrap your image around a 3D shape (with appropriate lighting).
sharpen photos with an unsharp mask. Finer results than the built-in sharpen effect
(Simon Brown's plugin pack)
Renders bullet holes in your image
(Silhouette(sp?))
Silhouettes images with partial transparency; turns the RGB to 000000 while preserving alpha.
Converts the entire canvas into your selected color while preserving the alpha levels of each pixel.
Draw vertical /horizontal lines across a selection
(Superseded by another plugin)
Use Equation instead
(MadJik's Plugin Pack)
Uses sine function to apply a horizontal &/or vertical shift
Dedicated to sharpening images after reduction size. Uses an adaptive algorithm, optimized for maximum reduction of halo effect.
(Toli's Effects)
. Selected Area is Smoothed internally, as if there were no surroundings.
(Pyrochild's Plugins(link))
. Use custom brushes (*png format) to smudge along the mouse path.
(Jesse Chunn Plugin Pack)
Detect 'rough' edges and softens them
Generate glowing spheres, diamonds, and flares, with lots of parameters
(Magical Plugins Megapack)
Scans the image to find the bright highlights then adds some sparkle to them.
Draws spirograph type shapes
(Pyrochild's Plugins)
. Create paths similar to dripping paint.
Test and design Sprite Sheets.
(MadJik's Plugin Pack)
Create/add polygon based stars
(BoltBait's Plugin Pack)
. Hide/show a second image in your original image.
(Jesse Chunn Plugin Pack)
. Convert an image (or selection) into a two color image similar to a stencil.
Apply a range of filters to your image
(Pyrochild's Plugins)
. Distorts base image with a “splintered” appearance
Manage your stock images from within PDN
Eine Art Bildverwaltung. Die Bilder werden als PNG in H:Eigene DateienPaint.NET BenutzerdateienStock abgelegt Steht nach der Installation unter Effekte >> Stock Organizer DLL:StockLibrary.dll
Allows you to select a plugin and independently adjust the opacity that the effect will hold over the original image
(filetype)
Adds support for SVG files. Note: requires InkScape be installed
(Screen Shot Utility)
Screen Shot Utility to take Screen Images and send it to Paint.NET Separate .exe-Anwendung, noch nicht getestet
(Plugin pack)
Effects: Sharpen+, Shadow/highlight recovery, Local contrast enhancement, Color to alpha, color mixer, Red eye quick fix, Basic adjustments, Hue/saturation+, Alpha blur,
(Note: Beta)
Encodes hidden text within an image. The plugin is needed to view the text.
(requires .NET Framework 3.5 SP1)
add a texture to a photo or image by changing the pixels brightness (based on the gradient of the texture).
Adds an item to the tools menu which allows you to shell out to another application (GIMP, Photoshop, etc..,) to edit the current layer. On Save & Close the changes will appear in Paint.NET.
fills the current image with a tiled version of another image (held in the clipboard)
Extracts pencil / line type drawing from an image (based on edge detection)
Simplifies image colors using code based on DirectX toon shaders Allows users to select two colours and have a brush that gradually changes colour between them
(BoltBait's Plugin Pack)
. Adjust the opacity of a selection independent of the entire layer
(Magical Plugins Megapack)
Distort an image as if you wrapped it around a cylinder Add TWAIN support for scanners. Should be compatible with all scanners that are TWAIN-compatible.
(Magical Plugins Megapack)
. Transform an image by applying a spiral twist
Corrects blurring introduced during photographing, scanning, resampling, or printing
Upload images direct to the internet from within PDN
(Filetype)
Support for Vantage Sat Receiver Preview Images
Wibbly line creator
Texturing / distorting effect
(Template)
Visual Studio 2005 plugin template
(Magical Plugins Megapack)
Draws random curves. The curve is pre-calculated and then resized to fit in the image, so start and end points are at random positions.
(Filetype)
VTF file support. File format used by the Source engine (Half-Life 2 etc.).
(Magical Plugins Megapack)
Render a reflection as if your image was reflected in water.
Wave distortion Effect
Renders a reflection similar to a wet floor.Character & symbol browser/writer for installed fonts.
(Filetype)
Adds XPM file support. NB doesn't handle every XPM option.
(filetype)
XPM support in Paint.NET. Doesn't handle every XPM option, Creates a grid with the text giving the position of the cell in this grid with X,Y coords. Useful to understand the transformation done by other distort effectsCreates shapes/lines using scales
Active2 years, 4 months ago
I have a digital camera that takes photos 24x7 and it often depending on the weather returns images with a nasty color cast. Generally blue.
I have been trying to find some source code or library that I can call from c# to reduce the color cast of the images.
Photoshop has a feature that works quite well on the images I tested which is:
Open the image
Select Image -> Adjustments -> Match Color
Check the Neutralize check box
This works well, but I do not know what it is doing.
I am not good at the maths so was looking for ideas on existing code or libraries that I could just use.
I have been searching the web but not found anything useful - would love some help.
ChrisChris
5 Answers
This looks like the White Balance is set for indoors (expecting reddish light) but getting daylight (blue). GIMP has a color temperature slider that will change the cast of the pictures. Are you talking about preventing this in the future, or batch processing a bunch of existing images. Even simple cameras (but maybe not mobile phones) have controls on white balance, for future shots.
This looks like a web cam plugged into your computer? So it is probably a moving target, meaning that the WB is being re-evaluated each time it takes a pic, and you may not be able to apply the same correction to each image.
Here is an imagemagick script which can batch process color temperature on a bunch of images. I think an approach which uses the temperature would be better than one that is just normalizing levels, because what if you are shooting the sky or ocean, and it should be blue? You just want to make sure it is the right blue.
Edit: For specific C# code, you might check here. The lower-left example in the first set of color balanced images look very much like your source image. There is also white balance function in the source code of paint.net
Tuning White Balance automatically cannot always work nice, because your algorithm will have less information as input data (no real light metering, only pixel values recorded by matrix, some of which may be clipped). So this can help when camera's setting is ridiculously wrong (like on your picture), but it cannot make WB right. You'd better buy a decent camera (there are even cheap ones that still can do good pictures)
BTW, if you want to invent a wheel, the idea is to scale color channels to make their average level equal. You can try different definitions of 'average' here, and you can also try to exclude pixels with clipped values from measurement. But there is no fun in doing it again, as there are good ways to do this mentioned in @mickro's answer.
You can use OpenCV to develop an algorithm that will fit your needs. When researching to find a solution for your problem, I realized that the problem of 'color balance could be solved with a lot of different way.
I choose to show you how to code a very simple algorithm that will not completely re-create the 'perfect' picture that you get with photoshop but something better than the original. You can then search for these topic in openCV on google and try different approach. To code this, I have use the new OpenCV NuGet package, that you can get here. Just add the binary from openCV in your output directory (debug folder) and you are up and running!
Then here is the code:
I put it in a form but you can use it in a console application too.
Create a histogram, auto-generate corrected levels (max, min and gamma), apply the levels to the image. Assuming you have somehow gathered your pixel data into an array of type Color...
... and here's the class...
Results:
dynamichaeldynamichael
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