Exported checkered image comes out all blury...

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aiat_gamer
Posts: 7
Joined: Fri Aug 30, 2013 7:53 pm

Exported checkered image comes out all blury...

Postby aiat_gamer » Tue Sep 03, 2013 8:50 pm

I have a few rectangles all together from big to small, smallest one is 6.4 pixels to 900 pixels. I have applied a checkered pattern to them, the size being 1 by 1pixles. Now I want to export the Bitmap image to the exact size, so I choose export and choose the default 90 dpi. The big rectangles (80 by 900) come out just fine but the small ones come out all messed up:

http://i.imgur.com/wprk2Vh.png

The middle one is the original SVG file, on the left is exported one using the checkered pattern of the inkscape itself, on the top right is using a pattern I made myself in blue and green and on the lower right is using a black and white checkered pattern I made. Seems like there is a problem when the color black is used. Now when I change the rectangle size to 5, it exports just fine...is there anyway to correct this? If not then I was thinking of exporting first the colored patterned( blue and green one for example) and then change it to black and white. Is there anyway of doing that?

Lazur
Posts: 4341
Joined: Tue Jun 14, 2016 10:38 am

Re: Exported checkered image comes out all blury...

Postby Lazur » Wed Sep 04, 2013 3:33 am

aiat_gamer wrote:...smallest one is 6.4 pixels...


How would you export an object with a pixel width with a float value to integer pixels on the exported image?
Some anti-aliasing will appear from that.
Theoretically if there was an option for no anti-aliasing in the exporting, the 6,4 pixels would be rounded to 6 pixels.

aiat_gamer
Posts: 7
Joined: Fri Aug 30, 2013 7:53 pm

Re: Exported checkered image comes out all blury...

Postby aiat_gamer » Wed Sep 04, 2013 6:54 pm

Oh, ok I need to change then. One more question, is there and option to work in only black and white environment without any gray scale?

Lazur
Posts: 4341
Joined: Tue Jun 14, 2016 10:38 am

Re: Exported checkered image comes out all blury...

Postby Lazur » Thu Sep 05, 2013 1:50 am

That's a tough one.

I could think of creating a black and white colour profile and using it.

Or checking if you can set the colour matrix filter to result in black&white colours only and applying it to all objects.

Or, creating a swap palette that covers all the rgba field, and an other one of only black and white shades and then using the swap colour extension by Ragnar.
http://www.inkscapeforum.com/viewtopic.php?f=5&t=15227
http://www.inkscapeforum.com/viewtopic.php?f=5&t=14090

I have no experience with those, could possibly turn the exported raster image to black&white with less effort in a raster image editor.

User avatar
RobA
Posts: 335
Joined: Fri Aug 10, 2007 1:22 am

Re: Exported checkered image comes out all blury...

Postby RobA » Sat Sep 07, 2013 5:25 am

aiat_gamer wrote:Oh, ok I need to change then. One more question, is there and option to work in only black and white environment without any gray scale?


You can group everything and apply a simple filter to make a (kind-of) threshold:
2013-09-06_152327.jpg
2013-09-06_152327.jpg (170.12 KiB) Viewed 776 times


-Rob A>


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