Re: Scaling image (with Akua?)
Re: Scaling image (with Akua?)
- Subject: Re: Scaling image (with Akua?)
- From: Lists <email@hidden>
- Date: Mon, 26 May 2003 09:06:15 -0700
Oh - sorry I didn't clarify - You can't specify the exact DPI you want.
1 returns 72 dpi, 2 returns 256 dpi, 3 returns 512 dpi 4 returns 768 dpi and
so on and so on.
I thought what you say is the way to do it - enter 150 dpi but it returns a
resolution of -27136. See the picture info for returned by my script:
set ThePicture to scale image ThePicture to theBounds at 150
-- scale the image to 150 dpi
return the picture info for ThePicture
returns:
{
picture size:11458,
picture bounds:{
0,
0,
0,
0
},
picture colors:32,
image colors:0,
picture resolution:{
-27136,
-27136
},
image grayscale:false,
image depth:32,
picture source box:{
0,
0,
250,
156
},
picture text count:0,
picture line count:0,
picture rect count:0,
picture rounded rect count:0,
picture oval count:0,
picture arc count:0,
picture polygon count:0,
picture region count:0,
picture bits count:0,
picture image count:0,
picture comment count:0,
picture compressed count:1,
picture compression:"jpeg",
picture compressed quality:50
}
In addition, there is nothing but a white image when opened in any graphics
application. Perhaps there is a conflict with my version of the OS,
Quicktime, Applescript, ???
I was hoping I could just specify the resolution as 150 dpi and everything
is great, but I can't. The resolution appears to be a function in that
whatever integer you supply, it adds 256.
0 = 72 is default
1 = 256
2 = 512
3 = 768
4 = 1024
5 = 1280
Etc etc
Is this the way it is supposed to work?
Thanks,
Steve
On 5/25/03 7:21 AM, "Brennan" <email@hidden> wrote:
>
On Thu, 22 May 2003 11:11:27 -0700, Lists <email@hidden> wrote:
>
>
> Hi List,
>
>
>
> Trying to do some image processing. Currently using Akua Draw
>
> Sweets V1.29. Everything works well EXCEPT I have little
>
> control over the final output resolution. I appear to be forced
>
> to use 72 256 or 512 (increasing in considerable increments.
>
> The specification I have been given requires 150 DPI output. Of
>
> course, it seems to me a 150 DPI file at 1.666667" is the same
>
> as a 256DPI file at 0.97777" but my client is insisting the
>
> files arrive at 150 DPI. Am I wrong on my DPI versus size
>
> assertion?
>
>
>
> I don't want to use graphic converter. Akua Draw Sweets
>
> requires that resolution be set by a small integer, 0, 1 , 2
>
> etc. Can I adjust resolution by playing with image depth?
>
>
Sure. Just because it says 'small integer' doesn't mean it has to be THAT
>
small. 72 or 150 is quite within range. (Maybe someone here knows what the
>
upper limit of a small integer is. Any takers?)
>
>
> The scale image line "at 1" returns the resolution at 256 DPI.
>
>
Well, that's weird, but it wouldn't surprise me that something as
>
off-the-wall as 1 DPI would cause unexpected results. Try 'at 150'.
>
>
Brennan
>
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