SFR（Spatial Frequency Response）
ff1e8db80addafe01df7f38ed8efc76b88584c8b687473db66c159aa9c47290f253328ebd40b0d22253f2691dd33e8e8fc0414cdb1ffb42590c70ad1e54122032ed11b30d4ff66b7d96106f17642c4dba39ad2b77e20857d78f3f7a1756d54668f9b70fbca3621548bcf4d6836c9ce9380b1967bc010777d85d6cfd88a8aedcda92684bb012a3a4dbb70cbe227818e61e49194c2ded6f355ff54b7fcaddaed6fe1a4ecbf0c5970e6893a57c489c326f584d620f23a65bd5294a9f72dc59479b1e6b2d4ef841e5fbffbaafdd25e49c7762c38fe18b4c066f3fec130652b33afc55b3bdfe87724c513e290a992124e38c0648c61fac6fd4a608 ...
Raw压缩效果分析
ff1e8db80addafe01df7f38ed8efc76b88584c8b687473db66c159aa9c47290ff4fee9418ffd3152be7c4acdad36af6dba05be7593cd0596b9b76fe7b2a03ac2e2bd92a30bd6eb9ffc8a080216d4c52081a5503023eb3e02969e9c2fa5878f4d77a9860166e14f846e42945462c78fd3aff25bced3090ffaf0ef41b4f8dcf1a8ae2594ec5920a9902acdaf4bdf67e6f41e9e528237e8fdfb14d91314d8544321ec903465a0227940ee41fea3340eedb3d1a3ea0ed0cea6d933ad6acae8bf4ab329b451a0348743fed231b2dbdde2ab54461308cb483b185567a9d32ab5fd4083236835ca2fd1d4d69f79c563412615033ee9a4bf8321818a8 ...
Pure Video Pipeline
ff1e8db80addafe01df7f38ed8efc76b88584c8b687473db66c159aa9c47290f06d72292236dd1943ea695fe09ac8f6cf8c8ed4308a058b0a7c4661f4dfdb9145d8e9a7f422f476ccf4efbd9e9c2ee38d001aefa49d3c09c79da932f570bfc8926926ed478aa67214278699261f7b736df99db87fa92129b51583b42be9af9871eaea856e7ae3a9af331d310c421e620ba271cd3f638de0572f78cb9aa7a47d3414c61efb5d6bc13e9356ece447bab930d5bd46ee071b05fd62801d53fc4151fb4fdc7ca51db3895e2a503d417cf2e0753fdafd92d1a02288a1d53f9de1c689c618f563a444693c8818a35127d111494bb6d4cb53e2c1186e ...
Calib模块
ff1e8db80addafe01df7f38ed8efc76b88584c8b687473db66c159aa9c47290fea349bd51c969654844d9bad73606d95773dc194cd7de892d9a815e3e96b56c8a0b9c7b1055ca74802aa739960c8a0cc42146af75f366d943a91acdbd172b286b33fff3644147d4187d63abedd46eb52c4774c8c3a675964aa20cf272445b93f737ef1b1ab6366554696ce299802b7315fd1ac971597e7edecc9b25474c022517bd518caa5346fa9b8b47c062e0cba366e84debe78d0b4eecb75c989c4ea553eb3188191a016210eec9dca0949d5357668b9f46c23615820a745d60e7808112580cff31dfbed36a25b2f7be899c644094bb8dcdba2ec28b7c ...
EIS Pipeline
ff1e8db80addafe01df7f38ed8efc76b88584c8b687473db66c159aa9c47290f5a1f98b9f99fd25c3ced00787a25dbe97d7c018ff7cdc1674e889000db39bacf07c1d0920a8645b56daa284c9603fa95b4f0f82d62ca9d6107793ffeb298a8c54478d2908c44eaca7621d81d4ed133a43c4117a58549221367031b0e61c10a8051389eeacccf7915111e64b85b4244f506d8b72e364b446a9d269e277c49d76cc8771ae00ca51f172a182ffcf45b4388bebe6813e32c4dec824f745834a4667e1f5ab11e55edb0edab4ea87eac03508f05e679329e3c756fc9f930a1534a0a6ff15f90bd61c16cdf0cce10926cafd1642a9367edb4564980b ...
OV48C双原生ISO配置方法
ff1e8db80addafe01df7f38ed8efc76b88584c8b687473db66c159aa9c47290f1edbc9d5d0b397b8b95cabe505fd5e7b96a567cfcc22481604e42334f90d6457b856535f14b6d88f8db3be03c52113b0eb44a7654e1b1e83f593a6ca7f49a6b82bd4bd2910b383422d7882bbcddcf55bddaab482db9620c3fb6750a522011409d61784184970380b1a6cd02af8c61c6335b694f2883c50f3639a29b371cca25331f82a070be3659de103d429835bcc602ce4a1c77fc28caeac2cc563914c465a3ce67c7ed810441a2fcca3855344a9322388239e0da072be2d0dc1e9f16dea3efaa8d0c5e7a0fb0ea863729edf8270d22920d9a421c11b2ed ...
MTF（Modulation Transfer Function）
ff1e8db80addafe01df7f38ed8efc76b88584c8b687473db66c159aa9c47290feb6fde87fc5392255a6198e12abcf0e5735c8630f392742d7953a3b9d21e8f27c0a47c60ef569fe445e93bb3b773d1aaf1bcc73eefb6c3a0f94ecc6938b7422c6b6b3a867ffb32fc4caf793ae44c7aecc0bc97ac3aec4e1f57efb1744de9c577d605290cbe1ed634d21bee673259fb0e1a9d223063bf537f36688b2f1545988927c81e268911db95fc99707e1a91848452908cbaa1455453d45b6596826eff9a582927d33184c5a2f29f629575fdf50cfd10abda22c0c702c0cd7abc5f680d3fa907ed9fe6426ae4ddaccda94d71cdfa3a64c1f112a94ae75 ...
ISP 之 AF
对焦和变焦
对焦
对焦（聚焦）就是把成的像准确的落在 sensor（camera
传感器）上，对焦有两种：自动对焦，手动对焦。
虚线是 sensor 的位置，当虚线落在像的位置上就是对焦完成。
变焦
光学变焦：就是改变透镜的焦距。由于改变了焦距，视场角也就变了，就可以实现拉近拉远的功能。
数码变焦：数码变焦过的的图像会出现失真，因为放大的过程会对图像进程插值。
反差对焦
CDAF(Contrast Detection Auto Focus)
光路结构比 PDAF
简单很多。它不需要额外的光学棱镜，不需要微透镜，也不需要额外的电路构造。它用软件算法直接分析
sensor 捕捉的主图像就可以判断图像是否聚焦良好。
原理
CDAF
对一个图像序列进行分析，找到对比度最大的一帧图，这个方法也叫做最大值法（maximum-seeking
method）。
最大值法的优缺点都很明显。其优点是仅需要考虑聚焦点附近一个小区域的像素，因此计算压力比较小，对于手持应用可以节省功耗。其缺点是需要抓拍多帧图像。如果只给一帧图像，CDAF
算法无从知晓当前图像是否聚焦良好，也不知道距离理想的聚焦位 ...
IQ调试
ff1e8db80addafe01df7f38ed8efc76b860176658e9b51797d900f394f1fceaf4b9746d24e87f274cafc59b6c8f732b7a325606e40a16b22e9cb80eecfd8758d437ffbdcf777bffa5279c3c6edd53321bfd5fcb00183a46208ce275453ae606aa62a5da6c97b957cdb336f8756f76f23db70323960c49a8e1eda00b0b7ff01b8bf32fcff9c346548ddccf230a462f399f70e3a8ba49b828d2fcfbbb9b73ab02021a07d66ad1f391fb32aa7cc7c05acb88edc2659388fb0831bad94ba6ee0ba3933cb5bb3769d349814094ad185aec218034c72338ad2ee5c663389b186c0b2e1ff53f116e9fade6c8cc58490e9dbdabb41ce295256e8d804f ...
ISP相关流程架构
ff1e8db80addafe01df7f38ed8efc76b88584c8b687473db66c159aa9c47290fd965a2ed1ba639b600d099727ca1fde30fac8d519f0fd7bece70d540b8b2873c931b3e0d7782ca184c01f1bc08fa60834dd28615c4abdf6e5dd5aef68b82364f41d4d53d890159a553ffaaffe4df2ff7d215222c465ca1589bfbb09a731fca057d453e19889acee87888aa1ef389c6ae54bfeb6fad84c4f096183cc2259dbcc76473fdf90fd5c5fd22a74539454ec60471beefafdfcf4957708e5f34579b7931fc6051796442d67f092be3f609ea6331d49a9e64cf873c8a1d625f4b37cb88753a2def6287e73efabf553e6ef4de1fcb02aa2cd4ea2e35368 ...