Viewing images

ImageWarp allows you to view images and investigate their properties in many ways.
To zoom an image

1.

From the View menu choose Zoom In to enlarge the active image by a factor of 2. Choose Zoom Out to reduce the image by a factor of 2. You can also use "+" and "-" keys respectively.

2.

To set the zoom factor to a specific value, use the Zoom box on the View toolbar.

3.

To utilize the "context zoom" feature, position the cursor over an area of interest in the image and press the "+" key. ImageWarp will attempt to keep the pointed area in the center of the image frame while enlarging the image.

To pan an image

1.

On the Draw toolbar click the Move button.

2.

Press the left mouse button and drag the image into its new position inside the image frame

3.

Use the scroll bars or arrow keys to adjust the position of the image.

4.

From the View menu choose Fit or press the HOME key to resize the active image frame so that it fits the image

To display image information

1.

From the View menu choose Information.

2.

The Image Information dialog box will appear reporting the image type, size, pixel depth, memory consumption, file path and other properties.

To analyze image pixels

1.

Move the mouse pointer over your images and watch the coordinates and value of a pointed pixel reported on the Status Bar. Note that for a gray image each pixel value is represented by a single number, while for an RGB image it is a triad of numbers.

2.

From the View menu choose Rulers or click the corresponding button on the View toolbar. Two coordinate rulers will appear on the top and left sides of the active image. As you move the pointer in the image frame, marks on the rulers indicate its coordinates in calibrated units. Use the rulers to estimate the size and position of objects in your images.

3.

From the View menu choose Digital Editor or click the corresponding button on the View toolbar. The Digital Editor window will open displaying the pixel values from the top left portion of the image. Notice that this portion is highlighted as a red rectangle. Changing the size of the Digital Editor or scrolling its content will cause this rectangle to move over the active image or selection, showing you the location of the area being viewed.

To adjust brightness, contrast and gamma

1.

From the Processing/Adjust menu select Contrast/Brightness or click the corresponding button on the Processing toolbar.

2.

Use the sliders to adjust contrast, brightness and gamma of the active image. As you move the sliders, you can see the changes reflected in the image and in the value displayed next to each slider bar.

To change display range for high depth images

1.

Make sure that your image is a high-bit depth one (such as 16-bit grayscale or 48-bit RGB)

2.

Locate the Display Range controls at the bottom of the image frame.

3.

Modify the values in the Minimum and Maximum boxes to map the specified range of intensity values in the image to the full luminance range of your display.

To pseudo-color a grayscale image

1.

Position the mouse cursor over the image and click the right mouse button.

2.

From the shortcut menu select Palette and then choose the desired pseudo-color scheme.