Smooth text

Helicon Filter: Want new feature? Suggest it here

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Ariel
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Unread postby Ariel » 05.06.2007 00:03

When you do the 2x view, that is not exactly looking at it twice as big, it is smoothing it, too. At 100%, Helicon is 100% sharp. I don't know why it looks a little blurred at your 100% view. And Lutz, you need to do smaller fonts to see what I am saying.

Inkscape and Helicon make text differently. Inkscape, even when converted to bitmap, is smooth, because instead of going one pixel to the next, it makes gray pixels in certain areas, making it look smoother. Helicon just takes the pixels without any smoothing averages, and at small sizes, it looks bad. Photoshop sure doesn't look so good, but if you use a smaller font size, it would probably do a better job than Helicon.

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Ariel
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Unread postby Ariel » 05.06.2007 01:03

While your test shows that Inkscape and Helicon show text in a similar way, I want to show you how they compare for small fonts with no interpolation. Look closely at the smallest fonts in these two pictures.
Image
Image

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Ariel
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Unread postby Ariel » 09.06.2007 01:07

BTW: This seems like a little bug, but when scrolling though different fonts, if one font you scroll by has no "regular" option, but rather is something like bold, or bold/italic, the next font you scroll to will automatically be set as bold or bold/italic.

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Ariel
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Unread postby Ariel » 20.06.2007 23:20

Maybe if you test text on a large picture, you won't be able to notice this as easily as when you test it on a small picture. Bottom line, I think Helicon needs smarter anti-aliasing.

lutz
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Unread postby lutz » 22.06.2007 06:10

Hi Ariel,

for me it seems to be the opposite way (?). The bigger the image and the bigger the font, the better the text looks. I see differences to other programs for low resolution images and small type, where HF seems to be on the soft side of rendering options (and white turns to greyish for small fonts). But I have not seen any "best" options for low resolution images yet.

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Ariel
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Unread postby Ariel » 22.06.2007 07:52

Yes, that is what I said; when you make text on a bigger picture, the font covers more pixels and thus will better render.

Guest

Unread postby Guest » 26.06.2007 06:57

Helicon, in general, needs better anti-aliasing. For example, when I view a picture at less than 100% zoom, instead of the program making it look proper (with a smart combination of anti-aliasing and sharpening), I see lots of "boxes" (in a grid all over the picture) of overly-sharpened-looking lines (similar to other cases where proper anti-aliasing is not done).

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Dan Kozub
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Unread postby Dan Kozub » 03.07.2007 15:59

I would appreciate the sample. Can you send it to dankozub (at) helicon.com.ua

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Ariel
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Unread postby Ariel » 03.07.2007 19:45

I noticed this problem in Helicon and some other places (like pictures uploaded to the web and resized by the server). It isn't always easy to reproduce or notice, but it happens. This picture (with lots of detail for the program to deal with) was in the distortions tab, viewed at less than 100%. The program didn't do anti-aliasing and thus produced the result. Look carefully, and you will notice like a grid of what looks like overly-sharp. I'm including another one to show where the grid is, because it can be a little difficult to spot.
Attachments
grid in black.png
grid in black.png (69.19 KiB) Viewed 7676 times
sharpness grid.png
sharpness grid.png (86.14 KiB) Viewed 7676 times

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Dan Kozub
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Unread postby Dan Kozub » 05.07.2007 20:32

I can see now what you meat.

We use downsized image and maybe no antialiasing on some tabs. When you apply filters to full resolution image by switching to Save tab you will see that the image is properly handled.

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Ariel
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Unread postby Ariel » 05.07.2007 20:38

I want to see it properly in every tab, and I assume most people do. I don't know how Picasa does it, but there, it always looks clear and consistent, and it is fast as lightning (even with their transition effects). Otherwise, users will get the feel that, if they use that tab, the result will be poor quality.

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Dan Kozub
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Unread postby Dan Kozub » 05.07.2007 20:45

Yep, you are absolutely right.


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