Module imagefilterCopy item path

Functions§

abs_diff

Filter using AbsDiff: D = | S1 - S2 |.

add

Filter using Add: D = saturation255(S1 + S2).

add_byte

Filter using AddByte: D = saturation255(S + C).

add_byte_to_half

Filter using AddByteToHalf: D = saturation255(S/2 + C).

add_uint

Filter using AddUint: D = saturation255((S[i] + Cs[i % 4]), Cs=Swap32((uint)C).

binarize_using_threshold

Filter using BinarizeUsingThreshold: D = (S >= T) ? 255:0.

bit_and

Filter using BitAnd: D = S1 & S2.

bit_negation

Filter using BitNegation: D = !S.

bit_or

Filter using BitOr: D = S1 | S2.

clip_to_range

Filter using ClipToRange: D = (S >= Tmin) & (S <= Tmax) S:Tmin | Tmax.

div

Filter using Div: D = S1 / S2.

mean

Filter using Mean: D = S1/2 + S2/2.

mmx_detect

MMX detection routine (with override flag).

mmx_off

Disable MMX check for filter functions and and force to use non-MMX C based code.

mmx_on

Enable MMX check for filter functions and use MMX code if available.

mult

Filter using Mult: D = saturation255(S1 * S2).

mult_by_byte

Filter using MultByByte: D = saturation255(S * C).

mult_div_by2

Filter using MultDivby2: D = saturation255(S1/2 * S2).

mult_div_by4

Filter using MultDivby4: D = saturation255(S1/2 * S2/2).

mult_nor

Filter using MultNor: D = S1 * S2.

normalize_linear

Filter using NormalizeLinear: D = saturation255((Nmax - Nmin)/(Cmax - Cmin)*(S - Cmin) + Nmin).

shift_left

Filter ShiftLeft: D = saturation255(S << N).

shift_left_byte

Filter using ShiftLeftByte: D = (S << N).

shift_left_uint

Filter using ShiftLeftUint: D = ((uint)S << N).

shift_right

Filter using ShiftRight: D = saturation0(S >> N).

shift_right_and_mult_by_byte

Filter using ShiftRightAndMultByByte: D = saturation255((S >> N) * C).

shift_right_uint

Filter using ShiftRightUint: D = saturation0((uint)S[i] >> N).

sub

Filter using Sub: D = saturation0(S1 - S2).

sub_byte

Filter using SubByte: D = saturation0(S - C).

sub_uint

Filter using SubUint: D = saturation0(S[i] - Cs[i % 4]), Cs=Swap32((uint)C).