comfyui-wavelet-2d

WaveletGraphicEQ

Independent gain (0-3x) on each of 4 SIGNED_IMAGE bands, in and out - e.g. mixing HH/HL/LH/LL between Wavelet Decompose and Wavelet Reconstruct to hear/see each subband's contribution. Same gain-slider mechanism as comfyui-fft-2d's FFTGraphicEqualizer, but each band is its own IMAGE-shaped socket rather than a radius-based mask carved out of one frequency image, so the ports aren't tied to HH/HL/LH/LL naming - band1..band4 is enough, and each band is scaled independently of the others' shapes. Each band input is optional and independent of the others: an unconnected band just passes straight through as an unconnected output (no zero-filling - there's no other band's shape to borrow here, unlike Wavelet Layout/Reconstruct where all four share one source image).

KULab/Wavelet · 4 outputs

WaveletLayout

Same inputs as Wavelet Reconstruct (HH, HL, LH, LL), but instead of inverting the transform, just places the four subbands side by side into the classic textbook 2x2 diagram: LL LH HL HH No `wavelet` parameter - no (inverse) DWT math happens here at all. All four inputs are optional, for nesting into a multi-level pyramid (e.g. this node's own output standing in for a deeper level's LL, or building a partial diagram before every band is ready): an unconnected input is treated as an all-zero subband, and only having none of the four connected is an error. If the connected subbands' H/W don't match (e.g. bior4.4 doesn't split into exact half-sized subbands, so nesting this node's output as another level's input can end up mismatched), everything is center-cropped down to the smallest common size first.

KULab/Wavelet · 4 inputs · 0 parameters · 1 output

WaveletReconstruct

Inverse of Wavelet Decompose: rebuilds a SIGNED_IMAGE from its LL/LH/HL/HH subbands (2D IDWT via PyWavelets). Inputs are ordered HH, HL, LH, LL to mirror Wavelet Decompose's outputs, so the two can be wired directly. Edge handling is fixed to "symmetric" (pywt's boundary mode). If the original image had an odd height/width, the reconstruction can come back 1px larger along that axis - with any wavelet longer than haar, the subband shapes alone don't retain whether the original length was odd or even. All four subband inputs are optional: an unconnected one is treated as an all-zero subband, and only having none of the four connected is an error. Unlike Wavelet Layout, the connected subbands must all share the exact same shape - idwt2 needs matching coefficient arrays, so mismatched sizes are a hard error here rather than getting cropped to fit.

KULab/Wavelet · 5 inputs · 0 parameters · 1 output