hesuicong
/
openMVS
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
Browse Source

微调色差

ManualUV
hesuicong 2 weeks ago
parent
d442e213d7
commit
dbbcb4d557
1 changed files with 91 additions and 55 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Unified View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 140
      libs/MVS/SceneTexture.cpp

140
libs/MVS/SceneTexture.cpp
Unescape View File

@ -8911,50 +8911,50 @@ void MeshTexture::CreateSeamVertices()
DEBUG_EXTRA(" patch stats: single(patches<2)=%zu, multi(>=2)=%zu, maxPatches=%zu", DEBUG_EXTRA(" patch stats: single(patches<2)=%zu, multi(>=2)=%zu, maxPatches=%zu",
svSingle, svMulti, svMaxPatches); svSingle, svMulti, svMaxPatches);
// ★★★ 截断 seamVertices 到合理规模（原版 OpenMVS 通常 < 50000）★★★ // // ★★★ 截断 seamVertices 到合理规模（原版 OpenMVS 通常 < 50000）★★★
// 按 patches 数量排序，保留最重要的（patches 多的 = 色差严重的接缝） // // 按 patches 数量排序，保留最重要的（patches 多的 = 色差严重的接缝）
const size_t MAX_SEAM_VERTICES = 40000; // ← 可调，先试 40000 // const size_t MAX_SEAM_VERTICES = 40000; // ← 可调，先试 40000
if (seamVertices.GetSize() > MAX_SEAM_VERTICES) { // if (seamVertices.GetSize() > MAX_SEAM_VERTICES) {
DEBUG_EXTRA(" Truncating seamVertices: %u -> %zu (keeping highest patch-count)", // DEBUG_EXTRA(" Truncating seamVertices: %u -> %zu (keeping highest patch-count)",
seamVertices.GetSize(), MAX_SEAM_VERTICES); // seamVertices.GetSize(), MAX_SEAM_VERTICES);
// 建 (索引, patch数量) 对，按 patch 数量降序 // // 建 (索引, patch数量) 对，按 patch 数量降序
std::vector<std::pair<uint32_t, size_t>> idxAndCount(seamVertices.GetSize()); // std::vector<std::pair<uint32_t, size_t>> idxAndCount(seamVertices.GetSize());
for (uint32_t i = 0; i < seamVertices.GetSize(); ++i) // for (uint32_t i = 0; i < seamVertices.GetSize(); ++i)
idxAndCount[i] = {i, seamVertices[i].patches.size()}; // idxAndCount[i] = {i, seamVertices[i].patches.size()};
std::sort(idxAndCount.begin(), idxAndCount.end(), // std::sort(idxAndCount.begin(), idxAndCount.end(),
[](const auto& a, const auto& b) { return a.second > b.second; }); // [](const auto& a, const auto& b) { return a.second > b.second; });
// // 选前 MAX_SEAM_VERTICES 个索引，排序回原始顺序以保持稳定性
// std::vector<uint32_t> keep(idxAndCount.size());
// for (size_t i = 0; i < MAX_SEAM_VERTICES; ++i) keep[i] = idxAndCount[i].first;
// std::sort(keep.begin(), keep.begin() + MAX_SEAM_VERTICES);
// // 重建 seamVertices（只保留选中的）
// decltype(seamVertices) newSV;
// newSV.Reserve(MAX_SEAM_VERTICES);
// std::unordered_map<uint32_t, uint32_t> old2new; // 旧索引 → 新索引
// for (size_t i = 0; i < MAX_SEAM_VERTICES; ++i) {
// const uint32_t oldIdx = keep[i];
// old2new[oldIdx] = (uint32_t)newSV.GetSize();
// newSV.push_back(std::move(seamVertices[oldIdx]));
// }
// 选前 MAX_SEAM_VERTICES 个索引，排序回原始顺序以保持稳定性 // // ★★★ 关键：更新所有 Patch::edges 里的 idxSeamVertex 引用 ★★★
std::vector<uint32_t> keep(idxAndCount.size()); // for (uint32_t i = 0; i < newSV.GetSize(); ++i) {
for (size_t i = 0; i < MAX_SEAM_VERTICES; ++i) keep[i] = idxAndCount[i].first; // for (auto& patch : newSV[i].patches) {
std::sort(keep.begin(), keep.begin() + MAX_SEAM_VERTICES); // for (auto& edge : patch.edges) {
// auto it = old2new.find(edge.idxSeamVertex);
// 重建 seamVertices（只保留选中的） // if (it != old2new.end())
decltype(seamVertices) newSV; // edge.idxSeamVertex = it->second;
newSV.Reserve(MAX_SEAM_VERTICES); // else
std::unordered_map<uint32_t, uint32_t> old2new; // 旧索引 → 新索引 // edge.idxSeamVertex = i; // 指向自己（会被忽略）
for (size_t i = 0; i < MAX_SEAM_VERTICES; ++i) { // }
const uint32_t oldIdx = keep[i]; // }
old2new[oldIdx] = (uint32_t)newSV.GetSize(); // }
newSV.push_back(std::move(seamVertices[oldIdx])); // seamVertices = std::move(newSV);
} // DEBUG_EXTRA(" Truncated seamVertices: %u final", seamVertices.GetSize());
// }
// ★★★ 关键：更新所有 Patch::edges 里的 idxSeamVertex 引用 ★★★
for (uint32_t i = 0; i < newSV.GetSize(); ++i) {
for (auto& patch : newSV[i].patches) {
for (auto& edge : patch.edges) {
auto it = old2new.find(edge.idxSeamVertex);
if (it != old2new.end())
edge.idxSeamVertex = it->second;
else
edge.idxSeamVertex = i; // 指向自己（会被忽略）
}
}
}
seamVertices = std::move(newSV);
DEBUG_EXTRA(" Truncated seamVertices: %u final", seamVertices.GetSize());
}
} }
// Native // Native
@ -9462,7 +9462,8 @@ void MeshTexture::GlobalSeamLeveling4()
const float r = x(v * 3 + 0); const float r = x(v * 3 + 0);
const float g = x(v * 3 + 1); const float g = x(v * 3 + 1);
const float b_ch = x(v * 3 + 2); const float b_ch = x(v * 3 + 2);
const float mean = (r + g + b_ch) / 3.0f; // 去均值 const float mean = (r + g + b_ch) / 3.0f;
// colorAdjustments[v] = Color(r, g, b_ch);
colorAdjustments[v] = Color(r - mean, g - mean, b_ch - mean); colorAdjustments[v] = Color(r - mean, g - mean, b_ch - mean);
} }
} else { } else {
@ -9513,22 +9514,28 @@ void MeshTexture::GlobalSeamLeveling4()
if (idxFace >= faces.GetSize()) continue; if (idxFace >= faces.GetSize()) continue;
const Face& face = faces[idxFace]; const Face& face = faces[idxFace];
// ★ 检查 faceTexcoords 访问
ASSERT(idxFace * 3 + 2 < faceTexcoords.GetSize()); ASSERT(idxFace * 3 + 2 < faceTexcoords.GetSize());
// ★ 检查 face[v] 不越界
for (int v = 0; v < 3; ++v) { for (int v = 0; v < 3; ++v) {
ASSERT(face[v] < vertices.size()); ASSERT(face[v] < vertices.size());
ASSERT(face[v] < vertpatch2rows.size()); ASSERT(face[v] < vertpatch2rows.size());
} }
data.tri = faceTexcoords.Begin() + idxFace * 3; // ★ UV [0,1] → patch 局部像素坐标
const cv::Size patchSize = texturePatch.rect.size();
TexCoord localTri[3];
const TexCoord* uvTri = faceTexcoords.Begin() + idxFace * 3;
for (int v = 0; v < 3; ++v) {
localTri[v] = TexCoord(uvTri[v].x * patchSize.width,
uvTri[v].y * patchSize.height);
}
data.tri = localTri;
for (int v = 0; v < 3; ++v) { for (int v = 0; v < 3; ++v) {
ASSERT(face[v] < vertices.size()); // ★ 加这行 ASSERT(face[v] < vertices.size());
auto search = vertpatch2rows[face[v]].find(idxPatch); auto search = vertpatch2rows[face[v]].find(idxPatch);
if (search != vertpatch2rows[face[v]].end()) if (search != vertpatch2rows[face[v]].end())
{ {
ASSERT(search->second < (Eigen::Index)colorAdjustments.size()); // ★ 关键 ASSERT(search->second < (Eigen::Index)colorAdjustments.size());
data.colors[v] = colorAdjustments[search->second]; data.colors[v] = colorAdjustments[search->second];
} }
else else
@ -9536,8 +9543,7 @@ void MeshTexture::GlobalSeamLeveling4()
} }
ColorMap::RasterizeTriangleBary(data.tri[0], data.tri[1], data.tri[2], data); ColorMap::RasterizeTriangleBary(data.tri[0], data.tri[1], data.tri[2], data);
} }
imageAdj.DilateMean<5>(imageAdj, Color::ZERO);
imageAdj.DilateMean<1>(imageAdj, Color::ZERO);
// ★ 把修正叠加到 outPatch（从 srcROI 读原始颜色） // ★ 把修正叠加到 outPatch（从 srcROI 读原始颜色）
for (int r = 0; r < srcROI.rows; ++r) { for (int r = 0; r < srcROI.rows; ++r) {
@ -15568,6 +15574,14 @@ void MeshTexture::ApplyGlobalSeamLevelingOnRCPatches(
(int)(atlas.rows * atlas.step)); (int)(atlas.rows * atlas.step));
DEBUG_EXTRA("expected: %d x %d x 3 = %d bytes", DEBUG_EXTRA("expected: %d x %d x 3 = %d bytes",
textureSize, textureSize, textureSize * textureSize * 3); textureSize, textureSize, textureSize * textureSize * 3);
for (int i = 0; i < std::min(3, (int)images.size()); ++i) {
char dbgName[256];
sprintf(dbgName, "debug_image_%d_after_gsl4.png", i);
cv::imwrite(dbgName, images[i].image); // ← 用 .image
}
DEBUG_EXTRA("Exported debug images after GSL4");
// ========== 3. 重光栅化（从已被 GSL4 修正的 images 读）========== // ========== 3. 重光栅化（从已被 GSL4 修正的 images 读）==========
ASSERT(atlas.rows == textureSize && atlas.cols == textureSize); ASSERT(atlas.rows == textureSize && atlas.cols == textureSize);
for (int pi = 0; pi < (int)rcPatches.size(); ++pi) { for (int pi = 0; pi < (int)rcPatches.size(); ++pi) {
@ -15583,6 +15597,20 @@ void MeshTexture::ApplyGlobalSeamLevelingOnRCPatches(
// cv::Mat correctedPatch = srcImg.image(tp.rect).clone(); // cv::Mat correctedPatch = srcImg.image(tp.rect).clone();
cv::Mat correctedPatch = correctedPatchImages[rcToTexPatch[pi]].clone(); // 局部拷贝 cv::Mat correctedPatch = correctedPatchImages[rcToTexPatch[pi]].clone(); // 局部拷贝
// 加上严格检查
static int cnt = 0;
if (cnt < 5) {
DEBUG_EXTRA("Patch %d: rcToTexPatch=%d, correctedPatch empty=%d, size=(%dx%d), type=%d",
cnt, rcToTexPatch[pi], correctedPatch.empty(),
correctedPatch.cols, correctedPatch.rows, correctedPatch.type());
if (!correctedPatch.empty()) {
char nm[256]; sprintf(nm, "debug_corrected_patch_%d.png", cnt);
cv::imwrite(nm, correctedPatch);
}
cnt++;
}
if (correctedPatch.empty()) continue; if (correctedPatch.empty()) continue;
const RCPatch& rp = rcPatches[pi]; const RCPatch& rp = rcPatches[pi];
@ -15616,6 +15644,7 @@ void MeshTexture::ApplyGlobalSeamLevelingOnRCPatches(
cv::remap(correctedPatch, remapped, mapX, mapY, cv::INTER_LINEAR, cv::BORDER_CONSTANT, cv::Scalar(0,0,0)); cv::remap(correctedPatch, remapped, mapX, mapY, cv::INTER_LINEAR, cv::BORDER_CONSTANT, cv::Scalar(0,0,0));
for (int y = 0; y < patchH; ++y) for (int y = 0; y < patchH; ++y)
{
for (int x = 0; x < patchW; ++x) { for (int x = 0; x < patchW; ++x) {
cv::Vec3b color = remapped.at<cv::Vec3b>(y, x); cv::Vec3b color = remapped.at<cv::Vec3b>(y, x);
if (color[0] < 5 && color[1] < 5 && color[2] < 5) continue; if (color[0] < 5 && color[1] < 5 && color[2] < 5) continue;
@ -15629,9 +15658,16 @@ void MeshTexture::ApplyGlobalSeamLevelingOnRCPatches(
pixel[1] = color[1]; pixel[1] = color[1];
pixel[2] = color[2]; pixel[2] = color[2];
} }
}
} }
atlas = localAtlas; atlas = localAtlas;
// // 调试用：导出调整后的 atlas
// static int dbgCount = 0;
// char dbgName[256];
// sprintf(dbgName, "debug_atlas_after_gsl4_%d.png", dbgCount++);
// cv::imwrite(dbgName, atlas);
// DEBUG_EXTRA("Exported %s", dbgName);
} }
} }
DEBUG_EXTRA("Re-rasterization done."); DEBUG_EXTRA("Re-rasterization done.");

Write Preview
Loading…
Cancel
Save