Hi,
This is with regard to the TDA4x LDC block. Build: 7.1.0 (20 Nov 2020).
On a typical single camera pipeline, consisting of capture, VISS, LSC, MSC nodes, after tuning the LDC block, green block-like artefacts are visible on the bottom of the image.
The image size is 1600x1300.
VISS output image does not have the block artefacts.
Below are the Mesh LDC configs:
################################################################################
# Configuration file for TDA4x LDC C Model #
################################################################################
42 # PRIVATE_MEMSIZE pixmem_size Fixed to 42
30 # PRIVATE_MEMSIZE pixmem_sizeC Fixed to 30
10 # PRIVATE_MEMSIZE meshmem_size Fixed to 10
1 # LDC_CTRL LDC_EN LDC Enable, 0: Disable, 1: Enable
1 # LDC_CTRL LDMAPEN LD Mapping enable, 0: disable, 1: enable
2 # LDC_CTRL DATAMODE Input data mode, 0: UYVY, 1: Y only, 2: YUV420SP, 3: UV only
0 # LDC_CTRL OP_DATAMODE Output data mode, 0: keep UYVY; 1: convert to 420
0 # LDC_CTRL IP_DFMT Input pixel format, 0: 8b, 1: 12b packed, 2: 12b unpacked
1 # LDC_CTRL PWARPEN 0: Disable perspective warp. 1: Enable perspective warp
0 # LDC_CFG YINT_TYP Interpolation type for Y data. 0: Bicubic, 1: Bilinear
0 # LDC_CFG REGMODE_EN Region mode, 0: disable, 1: enable
3 # LDC_MESHTABLE_CFG M Mesh table subsampling factor (0-7)
1600 # LDC_MESH_FRSZ W Mesh frame width (0-8192)
1300 # LDC_MESH_FRSZ H Mesh frame height (0-8192)
1600 # LDC_COMPUTE_FRSZ W Compute width (0-8192)
1304 # LDC_COMPUTE_FRSZ H Compute height (0-8192)
0 # LDC_INITXY INITX Output starting horizontal coordinate (0-8191)
0 # LDC_INITXY INITY Output starting vertical coordinate (0-8191)
1600 # LDC_INPUT_FRSZ W Input frame width (0-8192)
1300 # LDC_INPUT_FRSZ H Input frame height (0-8192)
32 # LDC_BLOCK_SIZE OBW Output block width (0-255)
32 # LDC_BLOCK_SIZE OBH Output block height (0-255)
0 # LDC_BLOCK_SIZE PIXPAD Pixel pad (0-15)
4096 # LDC_AB A Affine Transform warp, A S16Q12
0 # LDC_AB B Affine Transform warp, B S16Q12
0 # LDC_CD C Affine Transform warp, C S16Q3
0 # LDC_CD D Affine Transform warp, D S16Q12
4096 # LDC_EF E Affine Transform warp, E S16Q12
0 # LDC_EF F Affine Transform warp, F S16Q3
0 # LDC_GH G Affine Transform warp, G S16Q23
0 # LDC_GH H Affine Transform warp, H S16Q23
0 # LDC_SF_W1 W1 Width 1 (0-8191)
0 # LDC_SF_W2 W1 Width 2 (0-8191)
0 # LDC_SF_W3 W1 Width 3 (0-8191)
0 # LDC_SF_H1 H1 Height 1 (0-8191)
0 # LDC_SF_H2 H2 Height 2 (0-8191)
0 # LDC_SF_H3 H3 Height 3 (0-8191)
0 # LDC_SF_EN0 EN Enable
0 # LDC_BLOCK_SIZE0 OBW Output block width (0-255)
0 # LDC_BLOCK_SIZE0 OBH Output block height (0-255)
0 # LDC_BLOCK_SIZE0 PIXPAD Pixel pad (0-15)
0 # LDC_SF_EN1 EN Enable
0 # LDC_BLOCK_SIZE1 OBW Output block width (0-255)
0 # LDC_BLOCK_SIZE1 OBH Output block height (0-255)
0 # LDC_BLOCK_SIZE1 PIXPAD Pixel pad (0-15)
0 # LDC_SF_EN2 EN Enable
0 # LDC_BLOCK_SIZE2 OBW Output block width (0-255)
0 # LDC_BLOCK_SIZE2 OBH Output block height (0-255)
0 # LDC_BLOCK_SIZE2 PIXPAD Pixel pad (0-15)
0 # LDC_SF_EN3 EN Enable
0 # LDC_BLOCK_SIZE3 OBW Output block width (0-255)
0 # LDC_BLOCK_SIZE3 OBH Output block height (0-255)
0 # LDC_BLOCK_SIZE3 PIXPAD Pixel pad (0-15)
0 # LDC_SF_EN4 EN Enable
0 # LDC_BLOCK_SIZE4 OBW Output block width (0-255)
0 # LDC_BLOCK_SIZE4 OBH Output block height (0-255)
0 # LDC_BLOCK_SIZE4 PIXPAD Pixel pad (0-15)
0 # LDC_SF_EN5 EN Enable
0 # LDC_BLOCK_SIZE5 OBW Output block width (0-255)
0 # LDC_BLOCK_SIZE5 OBH Output block height (0-255)
0 # LDC_BLOCK_SIZE5 PIXPAD Pixel pad (0-15)
0 # LDC_SF_EN6 EN Enable
0 # LDC_BLOCK_SIZE6 OBW Output block width (0-255)
0 # LDC_BLOCK_SIZE6 OBH Output block height (0-255)
0 # LDC_BLOCK_SIZE6 PIXPAD Pixel pad (0-15)
0 # LDC_SF_EN7 EN Enable
0 # LDC_BLOCK_SIZE7 OBW Output block width (0-255)
0 # LDC_BLOCK_SIZE7 OBH Output block height (0-255)
0 # LDC_BLOCK_SIZE7 PIXPAD Pixel pad (0-15)
0 # LDC_SF_EN8 EN Enable
0 # LDC_BLOCK_SIZE8 OBW Output block width (0-255)
0 # LDC_BLOCK_SIZE8 OBH Output block height (0-255)
0 # LDC_BLOCK_SIZE8 PIXPAD Pixel pad (0-15)
0 # LDC_DUALOUT_CFG YLUT_EN Luma LUT enable (0-1)
8 # LDC_DUALOUT_CFG YIN_BITDPTH Luma input bit depth (8-12)
8 # LDC_DUALOUT_CFG YOUT_BITDPTH Luma output bit depth (8-12)
0 # LDC_DUALOUT_CFG CLUT_EN Chroma LUT enable (0-1)
8 # LDC_DUALOUT_CFG CIN_BITDPTH Chroma input bit depth (8-12)
8 # LDC_DUALOUT_CFG COUT_BITDPTH Chroma output bit depth (8-12)
Any help in this regard is highly appreciated.
Thanks,
Apeksha Chipade
