The imaging software glossary provides definitions for document and web imaging, in addition to terminology specific to Snowbound Software’s imaging technology. 

ActiveX

ActiveX is a loosely defined set of technologies developed by Microsoft for sharing information among different applications. ActiveX is an outgrowth of two other Microsoft technologies called OLE (Object Linking and Embedding) and COM (Component Object Model). One of the major features of ActiveX is its ability to be used by a number of development environments. ActiveX is supported in RasterMaster for Windows.

Alias All

Alias All turns scale to gray and scale to color on at display time. All 1-bit black and white and color documents are anti-aliased in Snowbound Software's RasterMaster for Java SDK.

Annotation

Annotations are used to mark up text and attach notes and comments to images and documents. In Snowbound's VirtualViewer web viewers, annotation objects are created through an interface and then stored in one or more annotation layers as a separate file. The annotation objects are registered as an underlying image permitting zooming and scrolling of the overall display without losing registration of the annotation information. You can set the foreground, background, and font color as well as line width and style for annotations.

Anti-Aliasing

Anti-aliasing is a method of making graphics and text easy to read and pleasing to the eye on-screen. Black and white or color images, if displayed at a lower resolution than 1:1 (image pixels to screen pixels), cause the image to look unreadable. This is because linear interpolation methods used for display skip pixels in the horizontal and vertical directions. Thus, some information is lost on display. Anti-aliasing corrects for this by producing an average of neighboring pixels. The effect is to give the document a soft, grayscale look. The underlying image is unaffected if used for display purposes. However, functions also exist to permanently modify black and white images to grayscale.

API

Application Program Interface (API) is the command-set for a set of routines that invoke a library or toolkit. It is a set of instructions that contain the rules that must be followed for two computer programs to talk to each other. For instance, a computer program can (and often must) use its operating system's API to allocate memory and access files.

Applet

An applet is a small Java application that can be sent along with a Web page to a user, much the same way an image is included. It is a software component that runs in the context of another program, for example a web browser. The applet must run in a container, which is provided by a host program, or through a plugin. It enables a variety of web browsers to accomplish many tasks, including viewing and manipulating images in many formats. When you use a Java technology-enabled browser to view a page that contains an applet, the applet's code is transferred to your system and executed by the browser's Java Virtual Machine (JVM). Snowbound's VirtualViewer Java viewers are available as an applet only or applet/servlet combination. The RasterMaster for Java imaging SDK can also be used to create an applet.

ASCII

ASCII is an industry standard which assigns letters, numbers, and other characters within the 256 slots available in the 8-bit code. ASCII defines codes for 33 non-printing control characters (which mostly affect how text is processed) plus 95 printable characters.

Aspect Ratio

The aspect ratio of an image is the proportion of the image's size given in terms of the horizontal dimension versus the vertical dimension. An aspect ratio of 4:3 indicates that the image is 4/3 times as wide as it is high. Maintaining aspect ratio is important when viewing images so that they do not appear ‘squished’ or ‘stretched’.

Attribute

An attribute is a defining characteristic of an object and is part of a tag. It can be set to different values.

The imaging software glossary provides definitions for document and web imaging, in addition to terminology specific to Snowbound Software’s imaging technology. 

ActiveX

ActiveX is a loosely defined set of technologies developed by Microsoft for sharing information among different applications. ActiveX is an outgrowth of two other Microsoft technologies called OLE (Object Linking and Embedding) and COM (Component Object Model). One of the major features of ActiveX is its ability to be used by a number of development environments. ActiveX is supported in RasterMaster for Windows.

Alias All

Alias All turns scale to gray and scale to color on at display time. All 1-bit black and white and color documents are anti-aliased in Snowbound Software's RasterMaster for Java SDK.

Annotation

Annotations are used to mark up text and attach notes and comments to images and documents. In Snowbound's VirtualViewer web viewers, annotation objects are created through an interface and then stored in one or more annotation layers as a separate file. The annotation objects are registered as an underlying image permitting zooming and scrolling of the overall display without losing registration of the annotation information. You can set the foreground, background, and font color as well as line width and style for annotations.

Anti-Aliasing

Anti-aliasing is a method of making graphics and text easy to read and pleasing to the eye on-screen. Black and white or color images, if displayed at a lower resolution than 1:1 (image pixels to screen pixels), cause the image to look unreadable. This is because linear interpolation methods used for display skip pixels in the horizontal and vertical directions. Thus, some information is lost on display. Anti-aliasing corrects for this by producing an average of neighboring pixels. The effect is to give the document a soft, grayscale look. The underlying image is unaffected if used for display purposes. However, functions also exist to permanently modify black and white images to grayscale.

API

Application Program Interface (API) is the command-set for a set of routines that invoke a library or toolkit. It is a set of instructions that contain the rules that must be followed for two computer programs to talk to each other. For instance, a computer program can (and often must) use its operating system's API to allocate memory and access files.

Applet

An applet is a small Java application that can be sent along with a Web page to a user, much the same way an image is included. It is a software component that runs in the context of another program, for example a web browser. The applet must run in a container, which is provided by a host program, or through a plugin. It enables a variety of web browsers to accomplish many tasks, including viewing and manipulating images in many formats. When you use a Java technology-enabled browser to view a page that contains an applet, the applet's code is transferred to your system and executed by the browser's Java Virtual Machine (JVM). Snowbound's VirtualViewer Java viewers are available as an applet only or applet/servlet combination. The RasterMaster for Java imaging SDK can also be used to create an applet.

ASCII

ASCII is an industry standard which assigns letters, numbers, and other characters within the 256 slots available in the 8-bit code. ASCII defines codes for 33 non-printing control characters (which mostly affect how text is processed) plus 95 printable characters.

Aspect Ratio

The aspect ratio of an image is the proportion of the image's size given in terms of the horizontal dimension versus the vertical dimension. An aspect ratio of 4:3 indicates that the image is 4/3 times as wide as it is high. Maintaining aspect ratio is important when viewing images so that they do not appear ‘squished’ or ‘stretched’.

Attribute

An attribute is a defining characteristic of an object and is part of a tag. It can be set to different values.

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