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 Row Profile Plot
A Row Profile plots the pixel values along a
line parallel to the image rows. The row(s) to be plotted are
located using the
Image Cursor. This type of plot shows changes in
image intensity (or "pixel value") in the horizontal
direction. The X axis of the plot measures the column number in the
image. A column profile plot can also be created using the
Line Profile tool to draw precisely along a single
row (hold down the Shift key while
drawing).
World Coordinates
If the image has a
World Coordinate System calibration, moving the
pointer along the plot X axis reflects the world coordinate change
in column number along the image X axis. The same image pixel value
applies at a given column number regardless of the plot Y
value.
Types of Row Profile Plots
This command plots the following types of
profiles:
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Single Row
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Averaged Row. Various methods are
available for averaging the rows; see
Plot Averaging Mode.
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Range of Rows showing multiple rows on
the same graph.
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If the
Image Window contains an
Image Set, Mira can make the above types of plots for
the entire image set or for only the top image; this is controlled
by the state of the
Graph Image Set mode of the
Image Window.
The Window Caption describes the type of plot that
is displayed:
To plot a row profile:
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Adjust the image cursor to cover the desired
pixels, and
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Click the plotting button or executing the menu
command to create the plot.
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Use the procedures below to plot a single row,
averaged row, or range of rows.
Procedures
Plotting a Single Row
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Set the command mode to Cursor Mode.
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Click the mouse on the image to position the
Image Cursor.
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Adjust the corners or edges of the Image Cursor
until it defines the region you wish to average. Combine moving and
sizing operations to get the image cursor where you want it.
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Execute the Plot > Row command in the
menu or click the  button to make the plot.
Alternatively, you can use the 'H' (horizontal, row)
keystroke command when the
Image Window has focus.
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The
Plot Bar world coordinates refer to the image along
the plotted row.
Plotting an Average Row
Mira can collapse the neighboring rows and plot the
result as a single line of data. Mira provides different options
for combining the adjacent lines to create the plot; see
Plot Averaging Mode.
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Set the command mode to Cursor Mode. If the image cursor is a rectangle,
it outlines the region to be averaged into a single row. If it is a
crosshair, the averaged region is the number of rows spanned by the
crosshair. In both cases, the same number of rows will be
averaged.
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Combine moving and sizing operations to get the
image cursor where you want it. Click the mouse on the image to
position the cursor and adjust the corners or edges until it
defines the range of rows to average.
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Select the row combining method by choosing an
option in the Combine Mode submenu of the  buttons' drop menu or use the image Plot menu or
Image Context Menu. The name in the menu adjusts to
the selected method.
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Execute the selected [Average Row] mode
from the menu. The plot title depends on the currently selected
Averaging Mode. Also see
Plotting an Averaged Line.
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The
Plot Bar world coordinates refer to the image along
the average row location.
Plotting a Range of Rows
This command plots all rows inside the
image cursor box to view them simultaneously or as an
animation.
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Set the command mode to Cursor Mode. If the image cursor is a rectangle,
it outlines the region of rows to be plotted. If it is a crosshair,
the span of the crosshair defines the number of rows to be plotted.
In both cases, the same number of rows will be plotted.
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Combine moving and sizing operations to get the
image cursor where you want it. Click the mouse on
the image to position the cursor and adjust the corners or edges
until it defines the range of rows to plot.
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In the plotting menu set the Plot Series Mode to Overplot and then use
the Range of Rows command. You can
later change the
Plot Series Mode from the
Plot Window using its Context Menu.
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The
Plot Bar world coordinates refer to the image along
each plotted row within the range.
Changing the Plot Appearance
After you have made the plot, its properties can be
changed using the
Plot Properties dialog. This includes properties such
as the minimum and maximum extent of the axes, the tick marks, axis
labels, fonts, colors, and more.
Related Topics
Plotting Commands
Column Profile Plot
Line Profile Plot
Plot Animation Bar
Plot Coordinate Systems
Plot Properties
Copying and
Pasting Plot Data
Plotting an Averaged Line
Mira Pro x64 User's Guide, Copyright Ⓒ 2023 Mirametrics, Inc. All
Rights Reserved.
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