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Groups > comp.sys.acorn.misc > #21611
| From | Jean-Michel <jmc.bruck@orange.fr> |
|---|---|
| Newsgroups | comp.sys.acorn.misc |
| Subject | Re: Sprite files |
| Date | 2025-02-28 20:37 +0100 |
| Organization | Jean-Michel |
| Message-ID | <ffd867f65b.jmb@jmc.bruck.orange.fr> (permalink) |
| References | (12 earlier) <5bf5fe3e31newslists@npost.uk> <5bf635f458Spambin@argonet.co.uk> <23143df65b.jmb@jmc.bruck.orange.fr> <5bf653afc0newslists@npost.uk> <6fa15bf65b.harriet@bazleyfamily.co.uk> |
In message <6fa15bf65b.harriet@bazleyfamily.co.uk>
Harriet Bazley <harriet@bazleyfamily.co.uk> wrote:
> On 28 Feb 2025 as I do recall,
> Chris Newman wrote:
>> In article <23143df65b.jmb@jmc.bruck.orange.fr>, Jean-Michel
>> <jmc.bruck@orange.fr> wrote:
> [snip]
>>> !DPLngScan has a function that helps a lot: histogram, To test,
>>> Important: change to monochrom and the size of the document before
>>> (300%)
>>
>> never used histogram.I must explore that.
>>
> How do you use a histogram? (I always thought it was just a form of
> graph displaying the maximum number of pixels in each colour or
> something - it never seemed like very useful information....)
I will try to explain, (a video would be better ...) taking the example of
SharpEye.
First, I Convert the Drawing to greyscale (256 levels), and increase size
by 300%.
Then, I open with menu the Histogram window. ( R=G=B)
You can see the density of the values (between 0 and 255), well otfen they
are almost all very close which will prevent the OCR from working.
To have a good result it is necessary that this density is better
distributed between 0 and 256, which is 2 arrows of the histogram tool
makes it possible to make
UNDO allows you to test until you get a well contrasting image for the
elements to be analyzed.
For example for Sharpeye the lines are essential ...
So you have to test, but you can use this process with photographs (jpeg,
greyscale if possible)
This requires a little training, but worth it!
I hope my explanation is clear enough.
I think it's useful because according to this discussion, SharpEye is
underused and it must be the same for !Sleuth.
--
Jean-Michel
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Sprite files Chris Newman <newslists@npost.uk> - 2025-02-22 12:45 +0000
Re: Sprite files Steve Fryatt <news@stevefryatt.org.uk> - 2025-02-22 14:06 +0000
Re: Sprite files Chris Newman <newslists@npost.uk> - 2025-02-23 10:55 +0000
Re: Sprite files Chris Hughes <news13@noonehere.co.uk> - 2025-02-23 11:31 +0000
Re: Sprite files Chris Newman <newslists@npost.uk> - 2025-02-23 12:01 +0000
Re: Sprite files Chris Newman <newslists@npost.uk> - 2025-02-23 23:34 +0000
Re: Sprite files Dave <dave@triffid.co.uk> - 2025-02-23 11:54 +0000
Re: Sprite files John <newsmcc@blueyonder.co.uk> - 2025-02-23 14:37 +0000
Re: Sprite files Dave <dave@triffid.co.uk> - 2025-02-24 08:30 +0000
Sprite files Dave <dave@triffid.co.uk> - 2025-02-26 11:50 +0000
Re: Sprite files Chris Newman <newslists@npost.uk> - 2025-02-26 16:42 +0000
Re: Sprite files Harriet Bazley <harriet@bazleyfamily.co.uk> - 2025-02-26 17:45 +0000
Re: Sprite files Harriet Bazley <harriet@bazleyfamily.co.uk> - 2025-02-26 17:54 +0000
Re: Sprite files Jean-Michel <jmc.bruck@orange.fr> - 2025-02-26 21:10 +0100
Re: Sprite files Harriet Bazley <harriet@bazleyfamily.co.uk> - 2025-02-26 22:04 +0000
Re: Sprite files Jean-Michel <jmc.bruck@orange.fr> - 2025-02-27 10:07 +0100
Re: Sprite files druck <news@druck.org.uk> - 2025-02-28 09:51 +0000
Re: Sprite files Harriet Bazley <harriet@bazleyfamily.co.uk> - 2025-02-28 10:45 +0000
Re: Sprite files Jean-Michel <jmc.bruck@orange.fr> - 2025-02-28 12:38 +0100
Re: Sprite files Harriet Bazley <harriet@bazleyfamily.co.uk> - 2025-02-28 14:02 +0000
Re: Sprite files Chris Newman <newslists@npost.uk> - 2025-02-28 15:58 +0000
Re: Sprite files Jean-Michel <jmc.bruck@orange.fr> - 2025-02-28 20:02 +0100
Re: Sprite files Harriet Bazley <harriet@bazleyfamily.co.uk> - 2025-02-28 11:07 +0000
Re: Sprite files druck <news@druck.org.uk> - 2025-02-28 14:17 +0000
Re: Sprite files Chris Newman <newslists@npost.uk> - 2025-02-27 22:17 +0000
Re: Sprite files Harriet Bazley <harriet@bazleyfamily.co.uk> - 2025-02-27 23:32 +0000
Re: Sprite files Chris Newman <newslists@npost.uk> - 2025-02-28 00:24 +0000
Re: Sprite files Stuart <Spambin@argonet.co.uk> - 2025-02-28 10:45 +0000
Re: Sprite files Jean-Michel <jmc.bruck@orange.fr> - 2025-02-28 12:50 +0100
Re: Sprite files Chris Newman <newslists@npost.uk> - 2025-02-28 15:57 +0000
Re: Sprite files Harriet Bazley <harriet@bazleyfamily.co.uk> - 2025-02-28 17:24 +0000
Re: Sprite files Jean-Michel <jmc.bruck@orange.fr> - 2025-02-28 20:37 +0100
Re: Sprite files Harriet Bazley <harriet@bazleyfamily.co.uk> - 2025-02-28 21:26 +0000
Re: Sprite files Jean-Michel <jmc.bruck@orange.fr> - 2025-03-01 11:31 +0100
Re: Sprite files Harriet Bazley <harriet@bazleyfamily.co.uk> - 2025-03-23 19:14 +0000
Re: Sprite files Jean-Michel <jmc.bruck@orange.fr> - 2025-03-24 11:38 +0100
Re: Sprite files Harriet Bazley <harriet@bazleyfamily.co.uk> - 2025-03-24 15:20 +0000
Re: Sprite files Jean-Michel <jmc.bruck@orange.fr> - 2025-03-24 18:50 +0100
Re: Sprite files Harriet Bazley <harriet@bazleyfamily.co.uk> - 2025-03-24 18:46 +0000
Re: Sprite files Jean-Michel <jmc.bruck@orange.fr> - 2025-03-25 10:33 +0100
Re: Sprite files Harriet Bazley <harriet@bazleyfamily.co.uk> - 2025-03-25 10:40 +0000
Re: Sprite files Jean-Michel <jmc.bruck@orange.fr> - 2025-03-25 19:52 +0100
Re: Sprite files Alan Griffin <ajg@argonet.co.uk> - 2025-03-25 21:45 +0000
Re: Sprite files Jean-Michel <jmc.bruck@orange.fr> - 2025-03-25 23:16 +0100
Re: Sprite files Harriet Bazley <harriet@bazleyfamily.co.uk> - 2025-03-25 23:52 +0000
Re: Sprite files Harriet Bazley <harriet@bazleyfamily.co.uk> - 2025-03-25 21:58 +0000
Re: Sprite files Kevin Wells <kev@kevsoft.co.uk> - 2025-02-27 23:27 +0000
Re: Sprite files Chris Newman <newslists@npost.uk> - 2025-02-28 15:53 +0000
Re: Sprite files Kevin Wells <kev@kevsoft.co.uk> - 2025-02-26 21:03 +0000
Re: Sprite files Jean-Michel <jmc.bruck@orange.fr> - 2025-02-24 10:42 +0100
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