The Itti algorithm exploits three low-level semantic features of an image: color, orientation and intensity.
Next, the researchers complicated the task by asking the students to remember multiple features such as color, orientation, size, or the presence or absence of a gap in rectangles.
These subcompartments, which are not clearly revealed by CO histochemistry, lie within each of the thin, pale, and thick CO dense stripes in V2 and are specific for aspects of color, orientation and retinal disparity, respectively.
These later effects provide evidence for long-range interaction between neurons relevant to figure ground segregation and pup out by brightness, color, orientation, texture, motion, and depth' [85, p. 1].
When the vine climbs onto a tree's branches, its versatile leaves (inset) can change their size, shape, color, orientation, and even the vein patterns to match the surrounding foliage (middle panel; the red arrow points to the vine, while the blue arrow indicates the host plant).
The prevailing Feature Integration Theory by Anne Treisman [5] states that perception picks up objects in a two-step process where a first, fast, unattended, automatic, and parallel process codes a number of separable dimensions of the visual scene such as color, orientation, spatial frequency, brightness and direction of movement.
Indeed, the color-orientation combination corresponding to the target never occurred.
Our pilot experiment, in which the blank interval between S1 and S2 was shortened into 150 ms while color or orientation was displayed in separated blocks, showed that participants detected the change of color and orientation equally efficient in a perceptual detection task (accuracy: 0.95 vs. 0.96; t(11)<1; RT: 563 ms vs. 590 ms; t(11) = 1.2, p = 0.251).
To spot the target both color and orientation needs to be processed.
Figures 7(c), 7 d), and 7 e) show feature maps of intensity, color, and orientation, respectively.
The color and orientation of labels are also studied in our work.
