color contrast definition

Found inside – Page 515Further, we focus on the color contrast between regions of the source image rather than ... 3.1 Definition and Analysis of “Impression” In order to simulate ... Found inside – Page 376See Luminance - color interactions Color vs. luminance responses of cells , 144145 ... See Color contrast definition of , 6 , 181 versus Fourier amplitude ... Found inside – Page 225... 46–48 x-height, 47 Chromatic contrast, see Color contrast Color, ... 18 in Low-vision reading, 19 Contrast definition, 45 effects on reading speed, ... Found inside – Page 86... that is, the saliency value of a pixel is defined by the color contrast between itself and other pixels in the image. The method uses the LAB color ... Found inside – Page 390.3.9.3 Maximum Object/Background Luminance Ratio (Object Contrast) The ... By this definition, LO and LB may be either the minimum or maximum luminances, ... Found inside – Page 178Equation (3) can be used for estimation of the color contrast of a big detail relative ... 1 and K∆max are pre-defined minimal and maximal contrast values, ... Found inside – Page 2604.34.6.5 ( 1 ) 4.34.6.5 , A4.34.6.1 , 5 4.1.1 3.5 SIGNAGE Character Proportion Color Contrast Definition of Directional Signs Historic Preservation ... Found inside – Page 226(12) We had chosen the definition of the external contrast between two ... of maximum color dissimilarity); and (2) the contrast is uniformly defined (as ... Found inside – Page 165On every trial two disks had the same content (the same color) and one an odd ... This is because the cone contrast of a stimulus is defined relative to its ... Found inside – Page 127... second application involves differentiating edges using light and color contrast. Stairs with clearly defined treads, rail lighting and automatic sensor ... Found inside – Page 15190Using a hyperspectral image database of natural scenes , we here show that color contrast , constancy , and ... method , the target was defined by spatially isolated patches of the same size ( 1.5 % of the region sampled ) and value in the 1931 ... Found inside – Page 500As already stated , this approach is particularly useful for defining the spatial distribution of flow velocities within the ... The potentially more useful application of contrast enhancement in the case of color Doppler is better definition of the ... Found inside – Page 133Unlike the Y in Y CbCr , the luminance is based on the CIE1976 lightness definition , which is a non - linear function . ... They represented colors in the cone contrast space , where each color is given by the color contrast defined as S = [ [ AL ... Found inside – Page 73... on the contrast function are given by: Cwid(I) := 1 4 ̈ Ω2 w(x,y) max(I(x), ... [5.8] is the well-known Michelson's definition of contrast [MIC 27]. Found inside – Page 547See also Brightness And Contrast dialog box and color correction , 223–226 , 237 defined , 208 using Curves to adjust , 199–204 using Hard Light blending ... Found inside – Page 175APPENDIX C OUTLINE OF SHAPE Definition of Shape : a two - dimensional area whose boundary may be defined by line , or contrast in value , color , or texture . Figure / Ground Relationship : the perception of some part of our environment ... Found inside – Page 585Color Contrast and Color Distribution: Color contrast is inspired by the ... color contrast saliency Sconi is computed according to the definition in [8]: ... Found inside – Page 94This is why strictly defined as conventional rules it's also the most common ... Color contrast has nothing to do with exposure range , but is a purer ... Found inside – Page 59MIT's own Dr. Schreiber felt he could adjust either display to elicit a favorable response from a subject, since color, contrast and brightness matching ... Found inside – Page 278Testimonials 42-3 The Crown 88-9 curves, color 250-2 cutaways 84 D The ... Casablanca 136-37 contrast, definition and uses (low contrast) 123, 140; ex. Found inside – Page 16Conner and Hodkinson ? studied these color contrast effects for the specific case of a " white " plume viewed against a blue sky background . The relationship between opacity and color contrast ratio from this study is reproduced in Figure 9 . ... TWO STACK HEIGHTS PUNE SUN VIND DI RECTION OBSERVER OFFSET ANCLE OBSERVER b - Color contrast ratio , Bss / Bo , is defined by Halow and Zeek ... Found inside – Page 199These pictures were reproduced by changing only one of such parameters as gamma , contrast , color change , and ... multi - media applications , the definition of the viewing angle only in terms of the contrast is inadequate for the display and ... Found inside – Page 235In considering delineation as the use of perceived differences in color or brightness to transfer information , and the definition of contrast as the intensification of the perceived difference between neighboring colors , this research was ... Found inside – Page 451Contrast index optimum, 201 prediction, 206 in sensitometry, ... and CRI, 15–16 Corpuscular theory, definition, 2 Correlated color temperature (CCT) vs. Found inside – Page 217Color Contrast . . . . . . . . . Definition of . . . . . . . . . . . . . . . . Directional Signs Historic Preservation Applicability . Found inside – Page 37The contrast of a luminance grating is generally defined by the Michelson contrast - ( Lmax - Lmin ) / ( Lmax + Lmin ) - where Lmax and Lmin represent the maximum and minimum luminances of the grating , respectively . The contrast of a color ... Found inside – Page 196The combined cone contrast is defined as: C 1⁄4 1⁄21=3ðC2L þ C2M þ C2SÞ1=2 This contrast definition has the advantage that, for pure luminance changes, ... Found inside – Page 224With a colored backqualified shades no set rules can be formulated as ground relief ornament is thrown into definition by color contrast mainly . The presence of too to colors which will and will not harmonize when much shadow blending with ... Found inside – Page 327... Contrast, photographic, definition.......................................................255 Contrast color filter, definition. Found inside – Page 85Character Proportion Color Contrast Definition of Directional Signs Historic Preservation : Applicability Incised or Raised Characters Indented Characters . Found inside – Page 63Definition 4.5. Given a pixel p and a channel c, the pixel channel contrast is defined by logN Hc(p) . sp It represents the color channel heterogeneity or ... Found inside – Page 11There is a technical issue, however, when comparing the sensitivities of the color and luminance system, as the definition of contrast is not as ... Found inside – Page 218... follows from above definition that the estimated equivalent black area of a gray or colored speck would be smaller than its actual area in inverse proportion to the intensity of its color contrast with its background . The equivalent area of a ... Found inside – Page 27His large areas of modulated color , with their high definition at the boundaries , prevented a maximization of color contrast . He had not yet grasped the Gestalt notion of strong and weak forms . Kupka for his part , in 1913 , spoke of rejection of ... Found inside – Page 91described , 19-20 , 70 samples of color , production of , technique 70-74 Successive contrast afterimage , preception of ... 59 Surface , reflected color of , determining factors , 21-22 ( see also Colorants ) body color , defined , 44 permanence ... Found inside... be recorded; contrast¥ does the lens have a short hard tonal range or a long gentle one; color rendition¥ this breaks down into two separate parameters, ... Found inside – Page 422See Choropleth map Choropleth map chorograms , defined , 125 conventional technique , 130 data model , 125 defined ... 322 Color interaction color constancy , 309 induction , 308 simultaneous contrast , 308 successive contrast , 308 Color ... Found inside – Page 61Contrast is defined as visibility of the features of interest against the background . It can be enhanced by altering the light path or by making use of colored stains , dyes , and filters . As humans , we can only see differences in intensity or color . Found inside – Page 278Color depth Color in a display is obtained by mixing three R, G, B, (Red, Green, and Blue) primary colors. ... Contrast ratio It is defined as WHITE ... Found inside – Page 104Color Contrast When interpreting color contrast we have to modify the previous definition . The need for this ... In this case the contrast value is 0 , however , we are able to discriminate the bars composed from these two colors . In our current ... Found inside – Page 243Quartz - halogen light bulbs : color temperature of , 40 , 72 ; definition of , 74 , 235 ; portability of , 179-80 ; preference for ... meters : definition of , 63 , 235 ; and exposure placement , 71-72 ; procedures for use of , 68-69 ; and scene contrast ... Found inside – Page 89This contrast, as well as the physician', links the perceptive approach of the LIP ... We propose a definition of a color contrast using the LIPC framework ... Found inside – Page 85... 4.34.4 ( 1 ) , ( 5 ) , 4.34.6.5 ( 1 ) 4.34.6.5 , A4.34.6.1 , .5 4.1.1 SIGNAGE ........ Character Proportion Color Contrast Definition of . Found inside – Page 19There are two steps to creating a successful color palette for the imprint ... with visible definition, or contrast, between the dark and light colors. Found inside – Page 90This block is a bit better than the color block, only because the star is well defined and there is sharp contrast between foreground and background, ... Found inside13 ) where depth , D ( c ) , of a color vector c is defined as the color difference between colors lighting the background ... Using the guidelines documented by filmmakers and designers , contrast is defined relative to the focus of the scene ... Found inside – Page 12This type of contrast is also denoted as simultaneous color contrast. ... Apart from the contrast definitions named here, the question is posed for digital ... Found inside – Page 203α = The contrast of reconstructed image in a color VCS [10,33] is defined as ... On the other hand, known [12] definition define the of contrast contrast ... Found inside – Page 26The desaturation with white for the light, and black for the shadow, create a chromatic contrast very defined in terms of shadows and luminosity. Is also denoted as simultaneous color contrast discriminate the bars composed from these two colors channel contrast also! These color contrast ratio from this study is reproduced in Figure 9 Hc p! In Figure 9 of contrast is defined by logN Hc ( p ) with Found... Is 0, color contrast definition, we can only see differences in intensity or color we can see... Colors which will and will not harmonize when much shadow blending with... 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