$MAX_MODULES
$MAX_MODULES
<p>A somewhat generic detector that looks for a barcode-like rectangular region within an image.
It looks within a mostly white region of an image for a region of black and white, but mostly black. It returns the four corners of the region, as best it can determine.
findCornerFromCenter(mixed $centerX, mixed $deltaX, mixed $left, mixed $right, mixed $centerY, mixed $deltaY, mixed $top, mixed $bottom, mixed $maxWhiteRun) : \Zxing\Common\Detector\a
Attempts to locate a corner of the barcode by scanning up, down, left or right from a center point which should be within the barcode.
| mixed | $centerX | |
| mixed | $deltaX | |
| mixed | $left | |
| mixed | $right | |
| mixed | $centerY | |
| mixed | $deltaY | |
| mixed | $top | |
| mixed | $bottom | |
| mixed | $maxWhiteRun |
if such a point cannot be found
{@link com.google.zxing.ResultPoint} encapsulating the corner that was found
blackWhiteRange(mixed $fixedDimension, mixed $maxWhiteRun, mixed $minDim, mixed $maxDim, mixed $horizontal) : int[]
Computes the start and end of a region of pixels, either horizontally or vertically, that could be part of a Data Matrix barcode.
| mixed | $fixedDimension | |
| mixed | $maxWhiteRun | |
| mixed | $minDim | |
| mixed | $maxDim | |
| mixed | $horizontal |
with start and end of found range, or null if no such range is found (e.g. only white was found)