Paint.NET :: Can't Get Past Square One With Tanel's Color-to-Alpha Plugin
May 9, 2011
I can't get past square one with Tanel's Color-to-Alpha plugin.
I'm trying to get this foreground image:
to look halfway decent on both of these backgrounds:
To complicate matters further, there'll be more backgrounds to come, too, certain to be lighter in color (homage paid to Murphy's Law).
I've tried combinations of settings all over the map, but nothing gets even close. The jagged edge just won't go away.
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Jan 22, 2013
It's not really related to Paint.NET usage, but how it calculate the resulting color:
For example I make red background, call it C1:
RGBA = 255, 0, 0, 255
Then I place a yellow pixel, call it C2:
RGBA: 220, 216, 0, 200
Then I use the Color Picker tool on this pixel, I get C3:
RGBA: 227, 169, 0, 255
I already know how to calculate R, G, and B of C3
R = ( (C2.A / 255) * C2.R ) + ( (1 - (C2.A / 255)) * C1.R ) = 227
G = ( (C2.A / 255) * C2.G ) + ( (1 - (C2.A / 255)) * C1.G ) = 169
B = ( (C2.A / 255) * C2.B ) + ( (1 - (C2.A / 255)) * C1.B ) = 0
But for the Alpha channel, it is different and I can't find how to calculate it!
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Oct 23, 2013
Is paint.net v4.0 still promising color and alpha channel editing / masking?
I'm sure I read this in the roadmap feature list years ago, though I can't find the place to reference it. In fact this is my favorite anticipated feature for which I've been checking paint.net every month for the last five years!
I eagerly downloaded the 4.0alpha but see no sign of color channels to go with layers
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May 11, 2013
Is there a way in Paint.NET to get a better color picker, either through an option or a plugin? Like this (or like [URL]
It's a whole lot easier to use something like this apposed to the circular color picker.
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Aug 23, 2013
I tried moving Nik Color Efex 3.0 out of PSPx5 Plug Ins folder into PSPx6 Plug Ins folder, but that didn't work. Tried plugging in via Preferences...File Locations...Plugins... but that didn't work either.
I installed 64 & 32 bit version per the installation instructions. Is there anyway I can install Nik Color Efex that came with x5 into x6?
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Feb 18, 2012
is there any tool/plugin that can fix color banding?
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Nov 29, 2012
I recently installed Paint.net (love it!) and was messing around with effects and colors when I stumbled upon this one adjustment/edit . That allowed you to select several colors and make a a threshold and other cool effects with only the colors you selected previously. I thought it was really cool, but I didn't save the photo.
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Feb 26, 2012
Wondering if there is a plugin that will match a color that is in picture. For example if I was trying to touch up a part of the sky it would pick out the blue I needed.
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Dec 13, 2012
I have a project that requires a watercolor illustration to merge with a colored (imaged) background, so I need the white of the illustration to drop out. This isn't a Magic Wand, Select Color Range, or any 'selection' issue like that. I need a sophisticated color-to-alpha plugin that will render the white (or any color, I suppose), to transparent. Needs to be Mac compatible... seen some for Windows, but can't use them.
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Dec 1, 2011
I have been using Paint Shop Pro for around fifteen years now and have always been very happy with each new version. I tended to upgrade every other version and have been using X2 for the last couple of years. With the recent announcement of Corel's service pack to fix some of the problems of X4, I decided to upgrade.
I uninstalled X2 and rebooted ready to install my shiny new copy of X4. All went well until I tried to start it up. The splash screen appears and starts to load up the components but every time it gets to "Initializing Palletes" it crashes and I get the "Paint Shop Pro has stopped working" and the options to close or go online and check for a solution!
I've tried uninstalling it, repairing the install, and also uninstalling it using the RevoUnInstaller as recommended by df but it didn't work. I also tried installing SP1 to see if it worked but didn't.
I can't even get this thing to start up at the moment. I need it for a few projects I'm working on and am beginning to wish I had left well alone!
I'm also dreading trying to re-install X2 as I can see that having problems if X4 has screwed up any deep-seated settings.
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Sep 2, 2013
I created some posters last year and I need to make them again this year. For some reason I'm not able to increase the font size past 1000.
I wrote down the instructions last year. The only thing I can't remember is how I increased the font to 2000. I can get the font size to 1000, but as soon as I increase it nothing shows up on the screen except the blinking cursor.
I'm using Paint.net 3.5.10 build 3.510.4297.28964 on windows 7. I have the image resolution set to 300.
I have also tried this same thing using the latest version of Paint.net on windows 8. I get the same behavior but I can't increase the font size past 900.
The file I created is too large to attach.
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Dec 9, 2012
Now, with that task simplified, I'm not sure how to change the color of the text created using this tool.
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Feb 3, 2013
I have a dark gray triangle alongside a pure white triangle in a square GIF image. I want to convert the white triangle to alpha and leave the dark gray triangle completely opaque. When I use Color --> Color to Alpha, however, I see the checkerboard pattern extend over the gray in addition to the white.
1. Does this mean that the gray is being made translucent?
2. If so, how do I set only one the white to alpha (at 0% opacity) and leave the gray at 100% opacity?
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Jul 4, 2013
When I color a the background of a photo to alpha it works just fine, I save it and export.
But when I try to open that same photo anywhere else the background is white .
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Aug 16, 2012
I've seen instructions to use this but I'm not sure what its core purpose is and I can't seem to find a definition in the user manual, online or in this forum.
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Feb 12, 2013
How do I take say the black and white version of an image and use the final grey scale value as the alpha value for that pixel on the original? Is this possible to do easily?
If not, what's the hard way?
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Jul 13, 2005
I creat an alpha channel it shows up as white on my Photoshop Version 6 while my friend's alpha channel comes up in black on Photoshop CS. Obviously each is a default setting. How do you change the alpha channel color from white to black and vice versa.
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Jan 2, 2012
I'm working on a mobile game engine that uses RGB vertex color values for baked lighting, and Alpha vertex values for 2-material blending.
The system works fine in textured view (6), since we're rendering using our own shaders, but I would prefer to be able to turn on and off the alpha value when looking at the geometry in shaded mode (5). In other words, I want to be able to store and bake RGBA values, but in shaded mode I'd like to only see the RGB values so the meshes with blended materials don't show up transparent when I'm trying to light them.
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Sep 13, 2012
I had a .JPEG of a leaf photographed against a white background. When I went to turn that white background into a transparent alpha channel, it seemed to work okay....except for the fact that when I then went to select the new alpha channel via the Fuzzy Select Tool, it wasn't selecting all these newly transparent pixels.
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May 31, 2012
I am using the latest version of GIMP on my windows 7 pc but color to alpha doesn't work. At my pc at work it works fine but i use windows xp there and i have ghostscript and python installed.
Or is it something completely different?
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Mar 9, 2012
I don't understand how you can know which colors to use when applying "Alpha to Color".
Here are a few images I have and what I've done so far:
Here are my original images
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Oct 26, 2012
I have been doing light box photography, but I want to get that pure white background as product images usually have.
My background is a light grey.. Using the wand tool, I was able to get close - but far from close enough.
[URL].....
What's the right method, to turn every thing around the dime, white?
Here it is before the wand,
[URL]......
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Mar 20, 2012
I have a square of a bown color. I would like the same brown but mixed with white (I just want it more pale, 50% more) how can I do that? CorelDraw X5 v. 15.2.0.686 Hot Fix 4 - Windows 7-64
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Jul 3, 2013
In PSP 8 I made a circular white clock face with black numerals on green background. I then saved it as a PNG, specifying the green as the transparent colour and specifying alpha channel.
It worked OK when viewed in my video editor, i.e. the green was transparent. But on opening it in PSP 8 I expected to see it displayed with the familiar chequer board background, yet it was a solid white.
So among many other PNGs it's impossible to tell that it does have a transparent area. Is this also the case in less ancient versions? What about other image editors - do they all have this weakness?
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Mar 10, 2012
I have an image I want to edit. It is a png tileset for a game, with opaque icons with semi-transparent background (yep the result in game is just as annoying as it sounds).
I'm not satisfied with background and want to make it more transparent (or maybe completely transparent). How do I do that?
There are adjustment tools in PDN that can modify separate channels; AFAIK alpha is technically identical to color channels but these tools only let me edit RGB.
how to specify a layer as alpha mask either.
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Feb 19, 2011
Is there anyway at this point in time to load a DDS file with alpha set to something other than 100%, alter the alpha channel, and save it back out again?
My situation is this. I'm currently working on a module for a game called Mount and Blade Warband and have created quite a few textures using Paint.net and never had any issues previously with any textures I've created and saved as DDS. However recently I found a texture file that I need to replace with my own version which has it's alpha channel set to something other than 100%. It's used to blend with another texture to give an aged appearance to hair.
Now this texture when loaded into Paint.net appears as a mostly transparent texture, which I cannot make any darker using the layer transparency slider which is set to maximum. i.e. The texture is loaded and displayed with transparency on, but the layer transparency slider in Paint.net is set at maximum opacity as if there is no transparency -- so the only thing I can do is make it even more transparent rather than make it darker. So when I tried to make my replacement for this particular file I created my texture, set transparency for the layer to about 20%, then saved as a DDS file -- however when I load it into the BRF game editor it displays as a completely black texture, while the original file displays fine.
EDIT: Also does it actually create mipmaps when you ask it to when saving? I just noticed that my textures don't seem to have them.
I should point out that while I'm very experienced with programming, 2D etc. I'm pretty new to 3D programming (not that I'm doing so on this project of course -- thought it might be easier working out how to create 3D objects while using someone elses engine to start with) and 3D object creation -- so things like DDS texture formats still create a lot of head scratching.
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Feb 17, 2012
Can you choose the type of Alpha channel that Paint.NET saves? Premultiplied or non-premultiplied/straight?
Otherwise, what is the type of alpha channel that Paint.NET saves by default?
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Apr 9, 2011
In photoshop there is a tab beside the layers tab, that allows you to add a shaded alpha channel to a .dds file.
I need to add a black alpha channel to a .dds file.
I've tried every alpha pluggin I can find but cannot replicate this effect.
And if I open a .dds file created in photoshop with a black alpha channel it is completely invisible in paint.net.
Why is it completely invisible in paint.net but not in photoshop?
How can I add a black alpha channel to a .dds file in paint.net?
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Nov 18, 2013
If I have two images, one is a texture map and the other is a normal map, how do I essentially paste the normal map into the alpha channel?
The stuff I am importing into (OpenSimulator) uses a single image to put texture and normal map information onto an object but so far I can't see anywhere to create the alpha channel.
I am not using the alpha channel for transparency, which seems to be a source of confusion (elsewhere). The thing is I CAN use it for that (transparency I mean) simply by making part of my image transparent (This is splendid by the way, and is yet another reason why I adore Paint.Net), this implies to me there are alpha channels or that the transparency thing is something different.
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Jun 25, 2013
to make the text image in the attached file. I want to apply a bevel to the text now that I have alpha masked it to get the gradient effect. But the bevel tool is treating the entire image (not just the text) as my selected object.
When I get done with the alpha mask, how do I get the text only as my selected object so that the bevel tool will apply the bevel to only the text?
I'm trying to get the text effect in this link: [URL] or something close to it. A previous post asked the same thing but the only answers he got was how to make it look gold, not how to do all the beveling, textures, sparkles, etc. For now though, all I'm wanting to do is achieve the bevel effect before I move on.
edit: the weird thing is, I can use the outline tool and it will apply only to the text. but when i use the bevel tool, it applies to the outer edges of the canvas.
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Mar 20, 2012
I'm using the 3D render engine vray, using its multimatte render element which assigns mattes of certain materials (or objects) in the scene to a channel: R, G, or B.
I'm curious about the best way to composite once I have this file rendered out. The simplest way I can think of is doing a color range selection on the matte channel's solid color, then using that selection to modify my image as necessary. But I have used After Effects to do this also, and there is a "channel select" effect that extracts the channel and converts it to an alpha mask in one step... makes me think there's a more elegant way in Photoshop as well.
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