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#1 2011-04-03 13:50:59

Chasing-dawn
Scratcher
Registered: 2011-02-05
Posts: 2

why does scratch ruin the quality of all the pics you upload?

My art pictures are simple jpegs that i put into a project and they get ruined- the quality gets all terrible and my pictures don't come out clear instead all pixelated!

I really hate when this happens- it doesn't allow people to see my art and how much work I put into it.

PLEASE tell me why this happens!!

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#2 2011-04-03 14:25:21

Harakou
Community Moderator
Registered: 2009-10-11
Posts: 1000+

Re: why does scratch ruin the quality of all the pics you upload?

For one, Jpeg's are compressed to start with. Scratch makes it worse by compressing the image further, and resizing it if it's too big. If you want good quality, you should edit the image beforehand in another editor and save it as a lossless format like a bitmap. (.bmp)


http://www.blocks.scratchr.org/API.php?action=random&return=image&link1=http://i.imgur.com/OZn2RD3.png&link2=http://i.imgur.com/duzaGTB.png&link3=http://i.imgur.com/CrDGvvZ.png&link4=http://i.imgur.com/POEpQyZ.png&link5=http://i.imgur.com/ZKJF8ac.png

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#3 2011-04-03 23:40:05

scratch_yoshi
Scratcher
Registered: 2009-06-12
Posts: 1000+

Re: why does scratch ruin the quality of all the pics you upload?

Actually, bitmap sometimes ruins the picture. Scratch converts the picture, no matter what format, into a Bitmap, ruining the quality.


Retired from Scratch, but just the language itself. Not the forums.

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#4 2011-04-04 00:08:16

andresmh
Scratch Team at MIT
Registered: 2007-03-05
Posts: 1000+

Re: why does scratch ruin the quality of all the pics you upload?

I like to think of Scratch's image quality closer to pixel art than high-resolution images or vectors.


Andres Monroy-Hernandez | Scratch Team at the MIT Media Lab
on identi.ca and  twitter

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#5 2011-04-04 00:34:03

Harakou
Community Moderator
Registered: 2009-10-11
Posts: 1000+

Re: why does scratch ruin the quality of all the pics you upload?

scratch_yoshi wrote:

Actually, bitmap sometimes ruins the picture. Scratch converts the picture, no matter what format, into a Bitmap, ruining the quality.

...which is why you should save as a bitmap at the exact resolution you need... -_-


http://www.blocks.scratchr.org/API.php?action=random&return=image&link1=http://i.imgur.com/OZn2RD3.png&link2=http://i.imgur.com/duzaGTB.png&link3=http://i.imgur.com/CrDGvvZ.png&link4=http://i.imgur.com/POEpQyZ.png&link5=http://i.imgur.com/ZKJF8ac.png

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#6 2011-04-06 02:15:27

floppy_gunk
Scratcher
Registered: 2008-11-14
Posts: 500+

Re: why does scratch ruin the quality of all the pics you upload?

Don't use semi-transparent images, Scratch can't handle them. Also, make sure the image is not larger than the stage, or it will scale it down.


http://img163.imageshack.us/img163/1917/2856lg.jpg Get it now!  smile

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#7 2011-04-06 12:58:14

CloneCommando1
Scratcher
Registered: 2010-12-02
Posts: 500+

Re: why does scratch ruin the quality of all the pics you upload?

I use Bitmap because it dosn't compress it as much as JPEG. I don't know why though. Maybe its magic. 0_0


RANDOM THOUGHT: If the tomato is a fruit, doesn't that make ketchup a smoothie?

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#8 2011-04-06 20:29:55

Harakou
Community Moderator
Registered: 2009-10-11
Posts: 1000+

Re: why does scratch ruin the quality of all the pics you upload?

CloneCommando1 wrote:

I use Bitmap because it dosn't compress it as much as JPEG. I don't know why though. Maybe its magic. 0_0

Well, jpegs compress the image data, and bitmaps are just a "map" of every single pixel on the image. So naturally, a jpeg is going to show more compression.


http://www.blocks.scratchr.org/API.php?action=random&return=image&link1=http://i.imgur.com/OZn2RD3.png&link2=http://i.imgur.com/duzaGTB.png&link3=http://i.imgur.com/CrDGvvZ.png&link4=http://i.imgur.com/POEpQyZ.png&link5=http://i.imgur.com/ZKJF8ac.png

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#9 2011-04-11 18:18:48

Chasing-dawn
Scratcher
Registered: 2011-02-05
Posts: 2

Re: why does scratch ruin the quality of all the pics you upload?

Ohhhh I see now!! Thanks for your help, everyone  smile

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