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Date Posted: 18:05:45 02/07/03 Fri
Author: Michel
Subject: Re: How to display a raw gray scale image?
In reply to: Olaf Meding 's message, "How to display a raw gray scale image?" on 18:10:36 02/05/03 Wed


Hi Olaf,

Here are some guidelines to get started on this. Also, note that I would recommend using version 2.

First create a TDibGraphic instance and call NewImage to create the gray scale graphic. Then you can assignt the pixels using the Rgb or PaletteIndex property from your raw gray scale data.

Then using a TImageScrollBox which will provide the scroll bars, assign the graphic. The code will be something like this:

Graphic = new TDibGraphic();
Graphic->NewImage(...);
// assign the pixels
ImageScrollBox->Graphic = Graphic;
ImageScrollBox->Redraw(True);
delete Graphic;

Best regards,

Michel

>How do I display a gray scale image? I have a file
>with raw data, each 2 bytes respresents 1 pixel (64K
>gray levels). I know the number of rows and columns.
>
>I installed the Envision Image Library - Version
>1.10A. It contains a control called TImageScrollBox.
>I would like to be able to somehow copy the raw data
>into this control so I can display and scroll the
>image in both directions.
>
>Any help on how to get started is greatly appreciated.
>
>Olaf

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