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tutorial.txt
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TUTORIAL.TXT for HUBBLE 1.30
1. USE OF DESKTOP PUBLISHING FEATURES IN DOCUMENT BASED PROCESSING
A. A Tour Through Sample HUBBLE Document File
A.1 Switch to [Document Based Processing] from [Option Menu] (Alt-O, D)
A.2 Load HUBBLE document file *HUBBLE.PUB* Using [File Menu] (Alt-F, O)
A.3 After the HUBBLE document is loaded, Users can edit paragraph text
of the document using cursor keys, <enter> keys, <Del> key, etc.,
or add text to a paragraph text.
A.4 To manipulate other graphic element, choose one of the menu commands
or click on a toolbox icon.
A.5 To Manipulate (Move/Resize/Delete) bitmap image, choose (Alt-E, M)
from the [Edit Menu]. Move mouse cursor on or around the bitmap
image, a hand cursor means users can move the image, a cross-arrow
means users can resize the image. Drag mouse (move mouse while left
button is down) to move or resize. Use <Del> key to delete the image.
A.6 Press [Esc] key to return to normal default operation. (Text input)
A.7 Click on [Drawing Tools] icon (The one with line, square, and circle)
To move, resize, add, or delete drawings.
E.g. Click on <SIZE> button to resize or move the current drawing.
Press <Enter> key to signal the operation (move/resize) is completed.
Click on <Cancel> to return to normal default operation.
A.8 Users can also reposition relative top-bottom placement of graphic
elements or drawings from [Edit Menu] (Alt-E, n) (Edit, Reposition).
Use <TAB> key to select current drawing, up-arrow to reposition the
drawing to the top, use down-arrow to reposition drawing bottom of
the drawing stack. Press [Esc] key to return to normal default
operation. (Text input)
B. Document Resolution and Printing
B.1 Users can customize page layout and paragraph format from
[Option Menu] (Alt-O, P). A Page and Paragraph Format Dialog
is invoked. One item in the dialog box is the setting of
document resolution. This setting only affect the printing
quality of the document.
B.2 The best result is when the resolution setting is the same
as the printer's resolution. However, if the printer
resolution is too high, HUBBLE may not be able to handle
(It consume too much memory). In this case, choose a lower
resolution. In general, choose a resolution between 100
to 200 pixels/inch.
B.3 Choose [Print Preview] for several resolution settings to
determine best resolution setting.
1. USE OF DESKTOP PUBLISHING FEATURES IN DOCUMENT BASED PROCESSING (Cont'd)
C. Available Fonts Style and Size
C.1 Most elements of HUBBLE document, drawings, image, etc. can be
move or resized. However, "Fonts Size and Style" for paragraph
text input is limited to those installed on the Windows.
C.2 There is a way to customize paragraph text "Fonts SIZE" when
printing. The trick is to use [Page and Paragraph Format] from
[Edit Menu] to define document page size. However, when printing,
users can reduce or enlarge the printing page.
C.3 For example, users define a document page of 4" by 5". However,
when printing, users can chose the printing page size (from
[print Dialog]) to be 8" by 10". In effect, users are printing
the document page which a "Fonts SIZE" twice the size of those
available from the fonts installed on the system.
2. USE OF TOOLBOX:(GENERAL) AND OTHER IMAGE OR DOCUMENT EDITING COMMANDS
A. %%%%%%%%%%%%%%% IMPORTANT SPECIAL NOTICES %%%%%%%%%%%%%%%%%%%
A.1 *** BRUSH SELECTION and LINE SELECTION *** from [Option Menu]
LINE SELECTION affect the attributes of drawing tools.
(Tools with icon of a line, a circle, a square)
BRUSH SELECTION affect the attributes of pencil tool.
(freehand drawing, Tools with icon a pencil)
A.2 Generally, users signal the end of an operation by
pressing the <Enter> key.
A.3 Usually, there may be several image editing elelments (drawings,
bitmap image, etc.) available at the same time. Depend on specific
tools or commands used, users may be able to know which editing
element is the current (active) one by making one of the following
observation:
A.3.1 By moving the mouse cursor, a hand-shaped cursor will appear
above the active editing element.
A.3.2 Color of the editing element is inverted. This situation is
is typical for MOVE/RESIZE operation.
A.3.3 By changing the editing element's attribute, e.g. by toggling
between OPAQUE and TRANSPARENT mode.
B. GENERAL CONCEPT
B.1 Users access to toolbox by clicking on the appropriate
<TOOLBOX> icon. A set of <PUSH BUTTON> will appear on the
status line from which users can choose to perform or fine
tune the operations. After users perform a task, such as
enter text lines or make drawings, the program still allow users
to make further adjustment. Commonly available feature are
<SIZE> (resize and move), <FG> changing the foreground color,
<BG> changing the background color, etc.
Modifications made to the image are grouped in **logical units**
of operation, such as a drawing, a line of text, or a group
of pixels. Hence <SIZE>, <FG>, <BG>, etc. are applied to the
whole unit of operation. Users can have many unit of operation
(e.g. many geometric drawings) at the same time, and can change
focus to different unit by using <TAB> key of push <TAB>button
on the status line.
NOTES:
All change made by toolbox are still not committed to
the image (changes have to be committed to the image to become
part of the image) until users click on the <WRT> (write) or
<OK> push button.
Please refer to online help for detail.
-- users can click on <cancel> push button to end the operation. --
2. USE OF TOOLBOX:(GENERAL) (Cont'd)
C. Notes on TOOLBOX:(RECTANGLE) and TOOLBOX:(Image Patching)
C.1 Similarity and Difference
TOOLBOX:(RECTANGLE) allow users to define a rectangular
area on the image and then users can either <COPY>,
<CUT>, <SCALE>, or <Stitch or Image Patching>
(push <OK> button).
TOOLBOX:(Image Patching) only allow users to do
<Stitch or Image Patching> but allow users to select
different shapes for the selected area.
C.2 Current Limitation
Some limitation for TOOLBOX:(Image Patching) may restrict
its use. Please read the file Newinfo.txt.
C.3 <COPY-RECTANGLE> function is also available through [Edit-Menu].
D. Notes on TOOLBOX:(RECTANGLE) and [Edit Menu]-[Trim Image]
Trim image is an alternate implementation of <COPY-RECTANGLE> in
TOOLBOX:(RECTANGLE). However, its using keyboard to defined the
selected rectangle.
E. Current Limitation
Please read the file Newinfo.txt.
3. USE OF TOOLBOX:(PENCIL) and TOOLBOX:(DRAWING)
A. Basic Differences (Brush Style and Line Style)
TOOLBOX:(PENCIL) is a pixel editing tools, while
TOOLBOX:(DRAWING) is a line drawing tools. Hence,
shape and size of pixel using TOOLBOX:(PENCIL) are
controlled by brush style (from Option menu), and
shape and size of drawing using TOOLBOX:(DRAWING)
are controlled by line style (also from Option menu).
B. Logical Unit of Operation.
A geometric drawing is considered a unit of operation.
For freehand drawing (either from TOOLBOX:(PENCIL) or
TOOLBOX:(DRAWING)), all drawing entered from initial
drawing until users push the [RETURN] key are considered
a logical unit.
Users can modify a drawing unit by clicking on the <SIZE>
button, then drag mouse on the image to move or resize the
drawings. For freehand drawing, users can modify the pixel
boundary after a group is formed by pushing the [SPACE BAR],
and push [RETURN] to complete the operation.
4. USE OF TOOLBOX:(Image Patching)
4.1 A Typical scenarios and steps of using TOOLBOX:(Image Patching)
a.) Support we want to change text on HUBBLE.BMP from "version 1.08"
to "version 1.14"
b.) Open HUBBLE.BMP, adjust display window to portion the image,
e.g. maximize the window.
c.) Click on TOOLBOX:(Image Patching) icon.
d.) Click on <RECT> on the status line.
e.) Draw a rectangle on the right of "version 1.08" to select an area.
f.) Click on <SIZE> on the status line to adjust the selected rectangle.
g.) Click on <Put> on the status line to move the selected area to
the left until it cover text "1.08" as follow:
g.1) Move mouse cursor over the selected area. (mouse cursor will
change to hand shape cursor.
g.2) Drag mouse to the left (move mouse while left button is down)
until the selected area cover text "1.08".
g.3) Click on <WRT> on the status line.
Now, text "1.08" will be replaced with background image.
h.) Click on <Cancel> on the status line to exit TOOLBOX:(Image Patching).
i.) Click on TOOLBOX:TEXT icon.
j.) Enter "1.30" at the location which previously display text "1.08".
k.) Click on <TRAN> on the status line to show image background.
l.) Click on <SIZE> on the status line to adjust the location and size
of the text entered.
m.) Push [RETURN] after finish adjust text entered in l.)
n.) Click on <WRT> on the status line.
o.) Click on <Cancel> on the status line to exit TOOLBOX:TEXT.
4.2
5. GRAYSCALE/COLOR CONVERSION, -VS- CUSTOM COLOR CONVERSION AND DITHERING
5.1 GRAYSCALE CONVERSION
Are used to change image to color format with higher number of
grayscale levels and/or convert color image to grayscale image
by averaging intensity of all color components using a pre-specified
formular.
5.2 GRAYSCALE/COLOR CONVERSION
Are used to change image to color format with higher number of colors.
5.3 CUSTOM COLOR CONVERSION AND DITHERING
Are used to convert the color format of an image to a different/new
set of color palette with the same or reduced number of colors. Without
dithering, the conversion is carried out using nearest color matching
method. With dithering, a wide range of methods are available (depending
on users preferences and suitability to specific needs) to approximate
the original image and give users the illusion that the image has
more colors than those available from the color palette used.
6. CUSTOM COLOR CONVERSION AND DITHERING
6.0 Users can convert an image without using -Dithering- technique.
If dithering is disabled, operation speed will be much faster.
6.1 Display Update
To get updated display on source or target image on "Custom Conversion"
dialog box, click on the respective image display areas.
6.2 A Typical steps of using Custom Color Conversion
a.) Open an image file from File Menu.
b.) Select Custom Color Conversion and Dithering from Transform Menu.
c.) Select dithering technique such as "Error Diffusion" from the
"Dithering Method" listbox. (Other dithering techniques may have
more restriction on palette which can be selected).
d.) Select "Color" from Target Quality and choose number of color
such as 256 or 16 colors.
e.) Click on "Build Palette >>" to make palette selection.
f.) Click on "Disable Dithering" check box to match the target image
with source image without using dithering technique. (This step is
advised to be done last and is recommended if the target image is
to be used for further editing such as area fill operation)
g.) Click on "TEST" or "OK" button.
***6.3 Scenarios where Custom Color Conversion and Dithering can be used
a.) When users want to merge two images or stitch one image over another
but can not be done because the two image are not compatible either
because they have different number of color or using different set
of color palette. e.g. imageA has 256-colors and
imageB is a true-color image.
imageA = IBM$4A.BMP, imageB=IBM$4B.BMP
a1.) open imageA
a2.) Paste the image (imageA) to clipboard.
(to make palette of imageA available through clipboard)
a3.) Open imageB.
a4.) Select Custom Color Conversion and Dithering from
Transform Menu.
a5.) Select dithering technique such as "Error Diffusion" from the
"Dithering Method" listbox. (Other dithering techniques may
have more restriction on palette which can be selected).
a6.) Select "Color" from Target Quality and choose 256-color.
a7.) Click on "Build Palette >>" to make palette selection.
a8.) Select "Clipboard Palette" the click on "OK".
a9.) Click on "Disable Dithering" check box to match the target
image with source image without using dithering technique.
(This step is advised to be done last and is recommended if
the target image is to be used for further editing such as
area fill operation)
a10.) Click on "OK" button.
==> the resulting image can be used to merge or stitch with imageA.
6.4 NOTES
a.) Sometime it's better disabled dithering Technique for some kind
of subsequent processing.
b.) At the build palette menu, there is a checkbox to limit
palette selection.
c.) If after the palette is built, <OK> button may still be disabled,
this is because the selected dithering method is not compatible
with current selected palette. Choose other dithering method from
the listbox or change to other set of palette. (users may also
have to uncheck the "Disable Dithering" checkbox to enable the
dithering method listbox)
(** A somewhat intertwined selections to make everything compatible **)
7. HOW MAKE IMAGE COMPATIBLE
7.1 If the image is from clipboard, paste the image from clipboard.
7.2 suppose IMAGEa is the image with desired palette, and we want to
convert IMAGEb to be compatible (for merging and stitching)
with IMAGEa.
7.3 Copy IMAGEa to clipboard to make the palette available.
7.4 Use GRAYSCALE/COLOR CONVERSION (usually COLOR CONVERSION) to convert
IMAGEb to have the same (or even higher) number of colors than IMAGEa.
7.5 Use CUSTOM COLOR CONVERSION AND DITHERING and using the palette from
clipboard (copied from step 6.3).
7.6 Disable dithering.
7.7 Complete the CUSTOM COLOR CONVERSION AND DITHERING process.
7.8 Also see -->
(4). GRAYSCALE/COLOR CONVERSION, -VS- CUSTOM COLOR CONVERSION AND DITHERING
(5). CUSTOM COLOR CONVERSION AND DITHERING
8. Stitch Image From Clipboard
If the clipboard image is not compatible to the base image (current
image which users want to have clipboard image stitch on).
8.1 Convert clipboard image to become compatible
Users should "Paste Image (Edit menu)" to a window first, then "Copy
base image to clipboard" (To make base image's palette available).
Next, users should use "CUSTOM CONVERSION and DITHERING" to convert
make the newly pasted image by using palette from clipboard as
its new palette. The method is explained in TUTORIAL.TXT, HUBBLE.DOC,
and HUBBLE online help.
8.2 Convert base image to become compatible with clipboard image
Users should "Paste Image (Edit menu)" to a window first, then
use "CUSTOM CONVERSION and DITHERING" to convert base image to
have palette compatible with the clipboard image. Users then
use this newly converted image as the base image to
"Stitch Image From Clipboard". See TUTORIAL.TXT, HUBBLE.DOC,
and HUBBLE online help on "CUSTOM CONVERSION and DITHERING" .
9. GENERAL NOTES
A. By default, A <Reduced Image> window will be displayed, and may be used
as a place for performing various house-keeping chores and for setting
up global variables, etc.
10. HOW TO USE THE PROGRAM
A. Help will always be available by pressing the F1 key. *********
B. If your scanner manufacturer do not supply TWAIN compatible driver,
you can use your scanner software to acquire image, save it in
BMP, PCX, or TIFF formats. Then use HUBBLE for further processing.
C. Use <DEL> key to delete current item of drawing, area fill,
modification, etc. in TOOLBOX.
11. Typical scenarios where HUBBLE can be used
- Process, enhance, edit scanned images.
- Prepare Image to make
* Pamphlet
* Transparency
* slide
* etc.
- Incorporate to other desktop publishing software
- Usually, users can use output devices that come with driver(s)
that allow the device to act as a printer.