[Coco] reducing size of scanned magazines

[Aaron Wolfe]

On Mon, Aug 17, 2009 at 3:08 PM, Leonard Miller<leonard23 at verizon.net> wrote:
> Hi Aaron, I just went to maltedmedia to find the files you uploaded.  I
> found 17 scans  there.  Are these the files you uploaded?  I'm asking
> because sometimes people upload things but they don't show up for awhile and
> I thought maybe these were scans done by other people.  I appreciate you
> taking the time to do this.  Thank you!!
>
> -Leonard
>

Hi,

It looks like the scans I made for 1981 are moved into the
MAGS0/RAINBOW/1981, and the scans for 1982 and what I've finished in
1983 are in /incoming.  I named them "Rainbow - Vol # No # - Mon
Year", except for april and june of 83, where the magazines seem to
stop using volume and no on the cover.  at some point the vol. no.
style returns, because issues from the 90s seem to use it, but i'm not
sure of exactly when.  if there is any preference for naming please
just let me know.

I will be unable to work on this more until next week, but i plan to
optimize the entire rainbow set at least.  The results seem to be very
nice.  For the months with the high res scans (300+ MB) at least a 10x
reduction in size but still very good readability.  The low quality
scans (<100mb) become about 3x smaller and actually much easier to
read.

-Aaron

>
> -----Original Message-----
> From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com] On
> Behalf Of Aaron Wolfe
> Sent: Friday, August 14, 2009 05:19 AM
> To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] reducing size of scanned magazines
>
> I've uploaded the first 12 issues to maltedmedia.  Compared to the
> high res scans they are about 10% of the size, but just as readable if
> not better.  The ClearScan does a nice job, especially if you want to
> be able to zoom in and out without losing clarity on the fonts.  It
> turns the letters into sort of quasi vector things instead of bitmaps.
>  I've also tried to reduce the bleed through in the background and
> other tweaks where they seemed to help.
> I am working my way through year 2 now.
> -Aaron
>
>
> On Thu, Aug 13, 2009 at 6:33 PM, Ben Jimenez<ben_jimenez at yahoo.com> wrote:
>> Hi,
>>
>> I'd like to read them, keep em coming.
>>
>> Ben
>>
>> --- On Tue, 8/11/09, Aaron Wolfe <aawolfe at gmail.com> wrote:
>>
>> From: Aaron Wolfe <aawolfe at gmail.com>
>> Subject: [Coco] reducing size of scanned magazines
>> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
>> Date: Tuesday, August 11, 2009, 8:38 PM
>>
>> I've been experimenting with the magazine scans on maltedmedia.  Playing
>> around with settings in Acrobat, I've managed to get the file sizes down
>> drastically without losing readability.  For example, the original April
> 85
>> Rainbow is 550MB. I have it down to 38MB and actually more readable than
> the
>> original scan by turning the time yellowed paper background back to
> pristine
>> white.  The Jan 85 issue of HotCoco went from 153MB  to 8MB and still very
>> readable.
>> Obviously it's important to preserve the highest quality scans for
>> historical reasons, but for daily use/reading I'd much rather save the
>> space.
>> Would anyone else be interested in these?  I could upload to malted, might
>> save a lot of downloading time for the next guy.  I plan to shrink at
> least
>> all the Rainbows and HotCoco's.
>> -Aaron
>>
>> --
>> Coco mailing list
>> Coco at maltedmedia.com
>> http://five.pairlist.net/mailman/listinfo/coco
>>
>> --
>> Coco mailing list
>> Coco at maltedmedia.com
>> http://five.pairlist.net/mailman/listinfo/coco
>>
>
> --
> Coco mailing list
> Coco at maltedmedia.com
> http://five.pairlist.net/mailman/listinfo/coco
>
>
>
> --
> Coco mailing list
> Coco at maltedmedia.com
> http://five.pairlist.net/mailman/listinfo/coco
>