Specifications

Image Arithmetic and Logical Operations
5-5
5
dstImage The resultant image.
value An integer value by which to multiply the pixel values.
Discussion
The functions change the image intensity by multiplying each pixel by a
constant
value .
MultiplySScale
Multiplies pixel values
by a constant and scales
the products.
void iplMultiplySScale(IplImage* srcImage , IplImage*
dstImage , int value );
srcImage Thesourceimage.
dstImage The resultant image.
value A positive value by which to multiply the pixel values.
Discussion
The function iplMultiplySScale() multiplies the input image pixel
values by value and scales the products using the following formula:
dst_pixel = src_pixel * value / max_val
where src_pixel is a pixel value of the source images, dst_pixel is the
resultant pixel value, and
max_val is the maximum presentable pixel
value. This function can be used to multiply the image by a number
between 0 and 1.
The source and resultant images must have the same pixel depth. The
function is implemented only for 8-bit and 16-bit unsigned data types.