PowerRIP ScreenPrint™ is a PostScript Level 3 Compatible RIP (Raster Image Processor) designed to produce high quality film positive or negatives with halftone dots using Epson inkjet printers. It provides more control over the ink than a native Epson driver, and allows users to specify which ink channels are used when printing black ink. A raster image processor (RIP) is a component used in a printing system which produces a raster image also known as a bitmap.Such a bitmap is used by a later stage of the printing system to produce the printed output. The input may be a page description in a high-level page description language such as PostScript, PDF, or XPS.The input can be or include bitmaps of higher or lower resolution.

• Raster Image Processor Software Machine
• Raster Image Processor Software Mac Torrent
• Raster Image Processor Software Mac 10

1. Free download Image Processor Image Processor for Mac OS X. Image Processor - It is very simple to edit an image for us, but for thousands of images with the same effects, even you are an art maker, you would think it is just a troublesome.
2. I am using Wasatch SoftRIP as my raster image processor for an Epston Stylus Pro 7800 large-format printer, but I want to be able to do this from my Mac, as moving everything to Windows and printing from there slows down our workflow.
3. Mar 01, 2002  The raster image processor (RIP) is the brain behind the digital imaging process, regardless of the type of image or output device used. Here, Coudray explores the functions and features of RIPs that screen printers need to know. The conversion of digital graphic information into a form that can be written (printed) by an output device is the function of the raster image processor (RIP).

In computer graphics, a raster graphics or bitmap image is a dot matrixdata structure that represents a generally rectangular grid of pixels (points of color), viewable via a monitor, paper, or other display medium. Raster images are stored in image files with varying formats.

A bitmap is a rectangular grid of pixels, with each pixel's color being specified by a number of bits.^[1] A bitmap might be created for storage in the display's video memory^[2] or as a device-independent bitmap file.^[1] A raster is technically characterized by the width and height of the image in pixels and by the number of bits per pixel (or color depth, which determines the number of colors it can represent).^[1]

The printing and prepress industries know raster graphics as contones (from 'continuous tones'). The opposite to contones is 'line work', usually implemented as vector graphics in digital systems.^[3] Vector images can be rasterized (converted into pixels), and raster images vectorized (raster images converted into vector graphics), by software. In both cases some information is lost, although certain vectorization operations can recreate salient information, as in the case of optical character recognition.

Etymology[edit]

The word 'raster' has its origins in the Latin rastrum (a rake), which is derived from radere (to scrape). It originates from the raster scan of cathode ray tube (CRT) video monitors, which paint the image line by line by magnetically or electrostatically steering a focused electron beam.^[4] By association, it can also refer to a rectangular grid of pixels. The word rastrum is now used to refer to a device for drawing musical staff lines.

Applications[edit]

Computer displays[edit]

Most modern computers have bitmapped displays, where each on-screen pixel directly corresponds to a small number of bits in memory.^[5] The screen is refreshed simply by scanning through pixels and coloring them according to each set of bits. The refresh procedure, being speed critical, is often implemented by dedicated circuitry, often as a part of a graphics processing unit. An early scanned display with raster computer graphics was invented in the late 1960s by A. Michael Noll at Bell Labs,^[6] but its patent application filed February 5, 1970 was abandoned at the Supreme Court in 1977 over the issue of the patentability of computer software.^[7]

Image storage[edit]

Most computer images are stored in raster graphics formats or compressed variations, including GIF, JPEG, and PNG, which are popular on the World Wide Web.^[1][8]

Three-dimensional voxel raster graphics are employed in video games and are also used in medical imaging such as MRI scanners.^[9]

Geographic information systems[edit]

GIS data is commonly stored in a raster format to encode geographic data as the pixel values. Georeferencing information can also be associated with pixels.

Resolution[edit]

Raster graphics are resolution dependent, meaning they cannot scale up to an arbitrary resolution without loss of apparent quality. This property contrasts with the capabilities of vector graphics, which easily scale up to the quality of the device rendering them. Raster graphics deal more practically than vector graphics with photographs and photo-realistic images, while vector graphics often serve better for typesetting or for graphic design. Modern computer-monitors typically display about 72 to 130 pixels per inch (PPI), and some modern consumer printers can resolve 2400 dots per inch (DPI) or more; determining the most appropriate image resolution for a given printer-resolution can pose difficulties, since printed output may have a greater level of detail than a viewer can discern on a monitor. Typically, a resolution of 150 to 300 PPI works well for 4-color process (CMYK) printing.

Raster Image Processor Software Machine

However, for printing technologies that perform color mixing through dithering (halftone) rather than through overprinting (virtually all home/office inkjet and laser printers), printer DPI and image PPI have a very different meaning, and this can be misleading. Because, through the dithering process, the printer builds a single image pixel out of several printer dots to increase color depth, the printer's DPI setting must be set far higher than the desired PPI to ensure sufficient color depth without sacrificing image resolution. Thus, for instance, printing an image at 250 PPI may actually require a printer setting of 1200 DPI.^[10]

Raster-based image editors[edit]

Raster-based image editors, such as PaintShop Pro, Painter, Photoshop, Paint.NET, MS Paint, and GIMP, revolve around editing pixels, unlike vector-based image editors, such as Xfig, CorelDRAW, Adobe Illustrator, or Inkscape, which revolve around editing lines and shapes (vectors). When an image is rendered in a raster-based image editor, the image is composed of millions of pixels. At its core, a raster image editor works by manipulating each individual pixel.^[8] Most^{[citation needed]} pixel-based image editors work using the RGB color model, but some also allow the use of other color models such as the CMYK color model.^[11]

See also[edit]

• Vector graphics - a contrasting graphics method

References[edit]

1. ^ ^abcd'Types of Bitmaps'. Microsoft Docs. Microsoft. 29 March 2017. Retrieved 1 January 2019. A bitmap is an array of bits that specify the color of each pixel in a rectangular array of pixels. The number of bits devoted to an individual pixel determines the number of colors that can be assigned to that pixel. For example, if each pixel is represented by 4 bits, then a given pixel can be assigned one of 16 different colors (2^4 = 16).
   ....
   There are many standard formats for saving bitmaps in disk files. GDI+ supports.... BMP.... GIF.... JPEG.... EXIF.... PNG.... TIFF
2. ^'Bitmap Class'. Msdn.microsoft.com. Retrieved 30 November 2014.
3. ^'Patent US6469805 - Post raster-image processing controls for digital color image printing'. Google.nl. Retrieved 30 November 2014.
4. ^Bach, Michael; Meigen, Thomas; Strasburger, Hans (1997). 'Raster-scan cathode-ray tubes for vision research – limits of resolution in space, time and intensity, and some solutions'. Spatial Vision. 10 (4): 403–14. doi:10.1163/156856897X00311. PMID9176948.
5. ^'bitmap display from FOLDOC'. Foldoc.org. Retrieved 30 November 2014.
6. ^Noll, A. Michael (March 1971). 'Scanned-Display Computer Graphics'. Communications of the ACM. 14 (3): 143–150. doi:10.1145/362566.362567.
7. ^'Patents'. Noll.uscannenberg.org. Retrieved 30 November 2014.
8. ^ ^ab'Raster vs Vector'. Gomez Graphics Vector Conversions. Retrieved 1 January 2019. Raster images are created with pixel-based programs or captured with a camera or scanner. They are more common in general such as jpg, gif, png, and are widely used on the web.
9. ^'CHAPTER-1'. Cis.rit.edu. Retrieved 30 November 2014.
10. ^Fulton, Wayne (April 10, 2010). 'Color Printer Resolution'. A few scanning tips. Retrieved August 21, 2011.
11. ^'Print Basics: RGB Versus CMYK'. HP Tech Takes. HP. 12 June 2018. Retrieved 1 January 2019. If people are going to see it on a computer monitor, choose RGB. If you’re printing it, use CMYK. (Tip: In Adobe® Photoshop®, you can choose between RGB and CMYK color channels by going to the Image menu and selecting Mode.)

Raster Image Processor Software Mac Torrent

This article is based on material taken from the Free On-line Dictionary of Computing prior to 1 November 2008 and incorporated under the 'relicensing' terms of the GFDL, version 1.3 or later.

Raster Image Processor Software Mac 10

A raster image processor (RIP) is a component used in a printing system which produces a raster image also known as a bitmap. Such a bitmap is used by a later stage of the printing system to produce the printed output. The input may be a page description in a high-level page description language such as PostScript, PDF, or XPS. The input can be or include bitmaps of higher or lower resolution than the output device, which the RIP resizes using an image scaling algorithm.

Originally a RIP was a rack of electronic hardware which received the page description via some interface (e.g. RS-232) and generated a 'hardware bitmap output' which was used to enable or disable each pixel on a real-time output device such as an optical film recorder, computer to film, or computer to plate.

A RIP can be implemented as a software module on a general-purpose computer, or as a firmware program executed on a microprocessor inside a printer. For high-end typesetting, standalone hardware RIPs are sometimes used. Ghostscript, GhostPCL, and ColorBurst's Overdrive (for macOS) are examples of software RIPs. Every PostScript printer contains a RIP in its firmware. The RIP chip in a laser printer sends its raster image output to the laser.

Earlier RIPs retained backward compatibility with phototypesetters/photosetters, so they supported the older languages. So, for example, Linotype RIPs supported CORA (RIP30).

Stages of RIP[edit]

1. Interpretation: This is the stage where the supported PDLs (page description languages) are translated into a private internal representation of each page. Most RIPs process pages serially, one page at a time, so the current machine state is only for the current page. After a page has been output, the page state is discarded to prepare for the next page.
2. Rendering: A process through which the private internal representation is turned into a continuous-tone bitmap. In practical RIPs, interpretation and rendering are frequently done together. Simple languages were designed to work on minimal hardware, so tend to 'directly drive' the renderer.
3. Screening: In order to print, the continuous-tone image is converted into a halftone (pattern of dots). Two screening methods or types are amplitude modulation (AM) screening and stochastic or frequency modulation (FM) screening. In AM screening, dot size varies depending on object density—tonal values; dots are placed in a fixed grid. In FM screening, dot size remains constant and dots are placed in random order to create darker or lighter areas of the image; dot placement is precisely controlled by sophisticated mathematical algorithms.

See also[edit]

• Image tracing (raster-to-vector 'conversion')

References[edit]