However these mechanical systems were slow, the images were dim and flickered severely, and the image resolution very low.

The electron beam could be swept across the screen much faster than any mechanical disc system, allowing for more closely spaced scan lines and much higher image resolution, while slow-fade phosphors removed image flicker effects.

Whilst providing a projected image, the technique has limited resolution ( 2-2. 5 nm ), due to both quantum mechanical effects and lateral variation in electron velocity.

As a consequence of the Nyquist – Shannon sampling theorem, any spatial waveform that can be displayed must consist of at least two pixels, which is proportional to image resolution.

This effectively triples the horizontal resolution of the image at normal viewing distances ; but the drawback is that the line thus drawn will show color fringes ( at some points it might look green, at other points it might look red or blue ).

A crystalline solid: atomic resolution image of strontium titanate.

With some implementations, image resolution may be less directly limited by bandwidth ; for example in DVB-T, broadcasters can choose from several different modulation schemes, giving them the option to reduce the transmission bitrate and make reception easier for more distant or mobile viewers.

Generally, the image resolution of an SEM is about an order of magnitude poorer than that of a TEM.

Recently, with the development of digital intermediate ( DI ), it has become possible to completely edit, composite visual effects, and color grade the image digitally at full resolution and bit-depth.

A detector is placed so as to collect these repelled ions ; the image formed from all the collected ions can be of sufficient resolution to image individual atoms on the tip surface.

This is often not an ideal solution for GIF images, both because the loss of spatial resolution typically makes an image look fuzzy on the screen, and because the dithering patterns often interfere with the compressibility of the image data, working against GIF's main purpose.

Click the image for higher resolution to see details regarding the locations of important structures.

Information theory and digital signal processing offer a major improvement of resolution and image clarity over previous analog methods.

In the fall of 2006, researchers developed and installed an " autonomous observatory " using robotic video cameras with image processing software that detects and records high resolution video of birds in flight inside a high probability zone in the Cache River area.

In addition, jaggies often occur when a bit-mapped image is converted to a different resolution.

The Fisher-Price PXL-2000 camcorder of the late 1980s recorded a windowboxed image to compensate partially for low resolution.

* Razor sharp image with no bleeding / smearing when used at native resolution.

Displaying any other resolution either requires a video scaler, causing blurriness and jagged edges ; or running the display at native resolution using 1: 1 pixel mapping, causing the image either not to fill the screen ( letterboxed display ), or to run off the lower right edge of the screen.

A general kind of lossy compression is to lower the resolution of an image, as in image scaling, particularly decimation.

However, the technique suffers from low light intensity in final image of many biological samples, and continues to be affected by low apparent resolution.

Westbrook further bemoans the Southern writers' creation of an unreal image of their homeland, which is too readily assimilated by both foreign readers and visiting Yankees: `` Our northerner is suspicious of all this crass evidence ( of urbanization ) presented to his senses.

Life is further characterized, in antithesis to Piepsam, as animal: the image of a dog, which appears at several places, is first given as the criterion of amiable, irrelevant interest aroused by life considered simply as a spectacle: a dog in a wagon is `` admirable '', `` a pleasure to contemplate '' ; ;

By `` image '' is meant not only a visual presentation, but also remembered sensations of any of the five senses plus the feelings which are immediately conjoined therewith.

This favorable image of America in the minds of Russian men and women is still there despite years of energetic anti-American propaganda ''

Merely having a mental image of some sort is not the all-important consideration.

The `` conventional '' image of a particular time and place is not necessarily congruent with the image of the facts as established over the years by scholarly and scientific research.

The image of man which enters into force with Aeschylus is still vital in Phedre and Athalie.

For here if anywhere in contemporary literature is a major effort to counterbalance Existentialism and restore some of its former lustre to the tarnished image of the species Man, or, as Malraux himself puts it, `` to make men conscious of the grandeur they ignore in themselves ''.

That picture of the American prairie is as indelibly fixed in the memory of those who have studied the conquest of the American continent as any later cinema image of the West made in live-oak canyons near Hollywood.

The most articulate Republicans are those who, in their desire to get back at Mr. Kennedy, already have created the image of a Republican leadership which is reluctant to assist the distressed and the unemployed, and which is even more unwilling to help old people who need medical care.

In establishing conditions of self-help, it is important that we not expect countries to remake themselves in our image.

When this linear draft is completed, I dust it down to a faint image.

Consider a simple, closed, plane curve C which is a real-analytic image of the unit circle, and which is given by Af.

The line Af is the image of L.

Moreover, from the definitive transformation of intercepts on the generators of Af, it is clear that the only points of Q at which a line can meet its image are the points of Aj.

The most obvious of these is the quadratic complex of tangents to Q, each line of which is transformed into the entire pencil of lines tangent to Q at the image of the point of tangency of the given line.

It is interesting that a 1: 1 correspondence can be established between the lines of two such pencils, so that in a sense a unique image can actually be assigned to each tangent.

Hence, thought of as a line in a particular plane **yp, any tangent to Q has a unique image and moreover this image is the same for all planes through L.

The format supports up to 8 bits per pixel thus allowing a single image to reference a palette of up to 256 distinct colors.

* In view of the general limitation on the GIF image palette to 256 colors, it is not usually used as a format for digital photography.

Note that due to the reduced number of colors in the image, there are obvious display issues. GIF is palette-based: the colors used in an image ( a frame ) in the file have their RGB values defined in a palette table that can hold up to 256 entries, and the data for the image refer to the colors by their indexes ( 0 – 255 ) in the palette table.

Paint does not make optimal use of the GIF format ; due to the unnecessarily large color table ( storing a full 256 colors instead of the used 2 ) and symbol width, this GIF file is not an efficient representation of the 15-pixel image ( illustrated enlarged above ).

* a 1024 × 1024 pixel bitmap image with 256 colors ( 8 bpp color depth ).

This indirect scheme restricts the number of available colors in an image ( typically 256 ), although each color in the table has typically 8 bits for each of the R, G, and B primaries.

The discovery image ( 256 × 256 pixels ) was collected on a Secondary Electron Conduction ( SEC ) vidicon tube, transferred to the instrument computer after being digitized to 7 bits.

But while Roman women held no direct political power, those from wealthy or powerful families could and did exert influence through private negotiations .< ref > Kristina Milnor, " Women in Roman Historiography ," in The Cambridge Companion to the Roman Historians ( Cambridge University Press, 2009 ), p. 278 ; Ann Ellis Hanson, " The Restructuring of Female Physiology at Rome ," in Les écoles médicales à Rome: Actes du 2 < sup > ème </ sup > Colloque international sur les textes médicaux latins antiques, Lausanne, septembre 1986 ( Université de Nantes, 1991 ), p. 256 .</ ref > Exceptional women who left an undeniable mark on history range from the semi-legendary Lucretia and Claudia Quinta, whose stories took on mythic significance ; fierce Republican-era women such as Cornelia, mother of the Gracchi, and Fulvia, who commanded an army and issued coins bearing her image ; women of the Julio-Claudian dynasty, most prominently Livia, who contributed to the formation of Imperial mores ; and the empress Helena, a driving force in establishing Christianity as the official religion of Rome.

On the other hand, some widely used image file formats and graphics cards may use only 8 bits per pixel, i. e., only 256 different colors, or 2 – 3 bits per channel.

* The typical number of different values in each color channel of a digital color image ( 256 values for red, 256 values for green, and 256 values for blue used for 24-bit color ) ( see color space ).

This is because in MIP mapping each MIP level is isotropic, so a 256 × 256 texture is downsized to a 128 × 128 image, then a 64 × 64 image and so on, so resolution halves on each axis simultaneously, so a MIP map texture probe to an image will always sample an image that is of equal frequency in each axis.

He hit. 256 with 20 home runs and 87 RBI, almost a mirror image of his previous season.