[How do I get Paint.NET portable?]

Out of curiosity, what's the technical reason?

Is it because of the optimization step at the end of installation (At least seems like there is such).

[How do I get Paint.NET portable?]

Is there a way to get the folder without the installation process?

[Replicating Photoshop's Gaussian Blur in Paint.NET]

Do you know how PDN creates the Gaussian Blur Kernel?

 

Namely, what's its support and its Sigma?

 

Thank You.

[Replicating Photoshop's Gaussian Blur in Paint.NET]

Hello,

Is there any way to replicate Photoshop's Gaussian Blur in Paint.Net?

 

Let's say I put Radius = 3 in Photoshop's Gaussian Blur, how can I replicate it in Paint.Net?

 

I mean the exact same results.

 

Thank You.

[Laplacian pyramid filter effect plugin]

Hi,

Looks great.

 

could you shed some light on the implementation?

 

In ACR they use it for Shadow / Highlight and Clarity, any idea how?

[Color Balance (Plugin) - UPDATED]

Nope. Mine's bloody potato.

Is there any reference how is it done in Photoshop?

Thanks.

[Color Balance (Plugin) - UPDATED]

Does it replicate Photoshop results 1 to 1?

Thanks.

[Unsharp Mask Filter]

OK, I managed to write something and it seems to work well.

If someone knows better to get results like Photoshop, Please let me know.

Here it is:

Input and Parameters (Just Like in Photoshop): A - Original Image, Amout, Radius, Threshold.

B - Blur image A using Gaussian Blur with Radius.

C - abs(A -

Mask = 1 Where Pixels of C > Threshold, 0 otherwise.

Output = A + Mask * (Amount * C)

That's it.

I hope it would work for you.

For anything that would make it more Photoshop / Gimp comparable, let me know.

Thanks.

[GPU Motion Blur effect using DirectCompute]

When you say "Motion Blur", What's the kernel you use?

Simple averaging in a direction?

I would like to try it on CPU.

I'll try to give results later.

Update:

Ok, got some results.

This is the configuration:

Q8200 @ 2100MHZ

4GB Memory.

nVidia GTX460

1280 x 960 - Matlab

BlurringKernel = fspecial('motion', length, 25)

Time:

Length = 50 - 0.29 s

Length = 100 - 0.9 s

Length = 200 - 5.5 s

uTorrent and Chrome on background.

Matlab is maybe as fast as it gets in those calculations (CPU).

So your results are nothing but stunning.

[Unsharp Mask Filter]

Actually I'm just prototyping something on Matlab.

If it works I could try write it for Paint.Net.

Hence I just need the basic Math behind it.

I saw many algorithms for USM, yet I need something similar to Phothsop / Gimp (With the Threshols Parameter).

If you remember, I asked you once in your blog if you could ever link between the two.

Thanks.

[Unsharp Mask Filter]

Unsharp Mask plugin

Well, I need the recipe how the math is done to do my own tool.

Thanks.

[Unsharp Mask Filter]

Hello.

Has anyone succeeded to replicate Photoshop's Unsharp Mask and willing to share.

I'm trying to write an algorithm which uses it and I want to replicate it.

I encountered several Method, yet I'm not sure they are the same.

Thanks.