Raster Editing Software

[Serafin Sonnier]

Araster graphics editor (also called bitmap graphics editor) is a computer program that allows users to create and edit images interactively on the computer screen and save them in one of many raster graphics file formats (also known as bitmap images) such as JPEG, PNG, and GIF.

Vector graphics editors are often contrasted with raster graphics editors, yet their capabilities complement each other. The technical difference between vector and raster editors stem from the difference between vector and raster images. Vector graphics are created mathematically, using geometric formulas. Each element is created and manipulated numerically; essentially using Cartesian coordinates for the placement of key points, and then a mathematical algorithm to connect the dots and define the colors.

Raster images include digital photos. A raster image is made up of rows and columns of dots, called pixels,[1][2] and is generally more photo-realistic. This is the standard form for digital cameras; whether it be a .raw file or .jpg file, the concept is the same. The image is represented pixel by pixel, like a microscopic jigsaw puzzle.

Vector editors tend to be better suited for graphic design, page layout, typography, logos, sharp-edged artistic illustrations, e.g., cartoons, clip art, complex geometric patterns, technical illustrations, diagramming and flowcharting.

Advanced raster editors, like GIMP and Adobe Photoshop, use vector methods (mathematics) for general layout and elements such as text, but are equipped to deal with raster images down to the pixel and often have special capabilities in doing so, such as brightness/contrast, and even adding "lighting" to a raster image or photograph.

A pixel is a single point in a picture. Pixel based artwork includes photos or any images that are "raster" formats such as JPEG, PNG, GIF and TIFF. Think of a pixel as a tile in a mosaic. Each is its own color and together many pixels build the image.

Some context: I georeferenced Google Earth high resolution downloads on to QGIS, and was looking to do image classification for a study on urban areas. Everything I read suggested using ORFEO Toolbox, but my QGIS 2.18, which was supposed to come pre-equipped with ORFEO never seemed to work for me and QGIS 3.0 is incompatible with ORFEO. Then I tried the Semi-automatic Classification Plug-in (SCP) that is also recommended, but it doesn't seem to like my GE screen grabs because they only have 3 bands (everything I read says it should be 4 or more bands). Then I thought I might try just editing the pixels manually so that one color meant built-up, another vegetation, etc., which would take forever, but at least would be more straight forward- but I can't figure out how to edit pixels on QGIS (I read that the Serval Plugin would work, but it is incompatible with QGIS 3.0 and before going back to QGIS 2.18, I wanted to see if there were any other recommendations). Ultimately, I'd like to create a vector layer with an attribute table that has the %age of land-type per polygon (land-type percentages coming from the raster that I create from the georeferenced GE image).

Why not have two versions of the raster image? A 'before' and 'after'. Create two views one for Existing Conditions and the second for Proposed Work? Link the images in, and hide the one that doesn't correspond to the view.

It's a pity that there doesn't exist a same solution that Microstation offers as DCartes in Revit. Currently we work still in Microstation but we are looking to do our High Voltage Substation desing in Revit in the near future.

Sam, a coworker of mine was looking for the same functionality just yesterday. I asked around and got suggestions similar to what you've already received, but then I did some web searching and found this extension/add-on: GitHub - haoliangyu/ares: ArcMap Raster Edit Suite

I've just tried this but get the error "void startEditing()" when I try to start editing any rasters. I've converted to GRID and starting a regular edit session first but no joy. Did you come across any similar problems?

Incidentally I was only working with a small section of a relatively small raster and went with the raster to point option. Edited the points, then converted back to raster setting snap raster as the original. It worked for my purposes but the addin looks like it would make things much easier.

The latest version of ARIS Grid & Raster Editor for ArcMap ( _arcmap) will let you do a limited number of edits in an edit session for free during the trial period. These edits are saved instantly so you can really check out whether it suits your work.

While raster graphic files use square pixels, vector images are dictated by mathematical formulas to create paths, curves, circles, and more. Vector images are also more flexible to use, as they're scalable, not dependent on resolution, and smaller in size.

Affinity Photo is a raster graphics software that sees many comparisons to Photoshop. Its affordable pricing, simple interface, layer-based editing, and time-saving features make Affinity Photo a top contender when searching for a raster image software program.

The great thing about Affinity Photo is that many features are specifically made to save time. And if you have to use Photoshop for some tasks, the support for various plugins could make this an easy program to implement into your workflows. Plus, the affordable one-time fee makes it a no-brainer if you need something specific to raster graphics.

While the free version has many of the basics, Artweaver Plus also includes more enhanced tools, extended support for PSD files, support for pen tablets, additional brush types and methods, and more. Artweaver Plus is available to download for a limited time test version.

When it comes to creating a detailed image, raster graphics are your friend. Since you can change every single pixel, it helps you create an image with a wide range of colors and complexities. Plus, raster graphic files are compatible with most photo editing programs.

A raster in software refers to a digital image represented by a grid of pixels, each with a specific color value. This pixel-based format is ideal for detailed and complex images such as photographs. In raster graphics, the image is composed of a fixed number of pixels, which can affect the image quality when resized.

Examples of raster programs include Adobe Photoshop, GIMP, Corel Painter, and Affinity Photo. These programs are widely used for editing and creating pixel-based images, offering various tools and features tailored to different professional needs, from basic image adjustments to advanced digital painting.

Raster graphics software is a type of program designed to create, edit, and manipulate raster images. It provides tools for working with pixel-based images, allowing users to perform tasks such as retouching photos, creating digital art, and designing graphics with fine details. These programs are essential for tasks requiring high image fidelity and detail, such as product photography and sports photography.

Two well-known raster programs are Adobe Photoshop and GIMP. Adobe Photoshop is a professional-grade software widely used in the industry for photo editing and graphic design. GIMP (GNU Image Manipulation Program) is a free and open-source alternative that offers many similar features, making it a popular choice for those looking for a cost-effective solution without sacrificing functionality.

In this study, the Raster Design toolset boosted productivity by up to 48%.* Learn how Raster Design can help you save time when working on an AutoCAD drawing that requires a raster image to convey design intent.

Starting a pixel editing session is super easy. Add the data you want to edit as a layer in a map. Select the raster layer in the Contents Pane. Go to the Imagery tab and click the Pixel Editor button found in the Tools group.

When you start an edit session you will get a new Pixel Editor tab containing all the tools to edit your data. There are 3 unique experiences for editing raster data. One for multispectral and single-band imagery, one for thematic data, and one for elevation data.

The main difference between the 3 ribbons is the Edit group. These set of tools are targeted to the common types of edits for the data source. I like to call them the simple and quick tools because they require little to no configuration, allowing you to jump right in making edits. The edit will take place as soon as you finish your sketch, and the sketch will go away. Of course, if you mess up you can undo it using Ctrl-Z.

The selections you make with the Region sketch tools work directly with the Operations gallery, which ultimately leads you the Pixel Editor Operations pane. The pane is for more advanced edits requiring some input parameters. Selections made using the Region sketch tools are sticky. They stay selected so you can apply one or more operations on the selection. When you make a new selection with these tools the previous sketch will be hidden from view, unless you click on the Retain button. The Retain button is also handy when you need to handle edits where two regions of interest overlap each other.

The Capture selection tools containing Copy and Replace are very useful tools. You make a sketch and move the sketch around in the image to copy or replace pixels. The Capture tools are for copying and replacing pixels within the same image or from another image over the same area; perhaps at a different time. You can choose the Source Layer in the drop-down menu.

You can review all of your edits by clicking the Edit Logs button on the Pixel Editor tab or by switching the active tab on the Pixel Editor Operations pane to the Edits Log tab. The entries in the Edit Log are sorted by the most recent edit. You can review the time of the edit, the parameters that were input, and the ability to quickly zoom to the edited area.

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