From 90f7d86256e8a880b96db2a12bc1c14d2764160a Mon Sep 17 00:00:00 2001
From: Joe Kang <joekang@google.com>
Date: Tue, 19 Sep 2023 13:07:12 -0700
Subject: [PATCH] misc: typos in comments fix

---
 common/homography.c  | 2 +-
 common/homography.h  | 2 +-
 common/pjpeg.c       | 2 +-
 common/string_util.h | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/common/homography.c b/common/homography.c
index 48e7f02d..54ab47eb 100644
--- a/common/homography.c
+++ b/common/homography.c
@@ -253,7 +253,7 @@ matd_t *homography_compute(zarray_t *correspondences, int flags)
 // And that the homography is equal to the projection matrix times the
 // model matrix, recover the model matrix (which is returned). Note
 // that the third column of the model matrix is missing in the
-// expresison below, reflecting the fact that the homography assumes
+// expression below, reflecting the fact that the homography assumes
 // all points are at z=0 (i.e., planar) and that the element of z is
 // thus omitted.  (3x1 instead of 4x1).
 //
diff --git a/common/homography.h b/common/homography.h
index c92193fa..b1560c37 100644
--- a/common/homography.h
+++ b/common/homography.h
@@ -148,7 +148,7 @@ static inline void homography_project(const matd_t *H, double x, double y, doubl
 //
 // And that the homography is equal to the projection matrix times the model matrix,
 // recover the model matrix (which is returned). Note that the third column of the model
-// matrix is missing in the expresison below, reflecting the fact that the homography assumes
+// matrix is missing in the expression below, reflecting the fact that the homography assumes
 // all points are at z=0 (i.e., planar) and that the element of z is thus omitted.
 // (3x1 instead of 4x1).
 //
diff --git a/common/pjpeg.c b/common/pjpeg.c
index acc61f07..7e3d089a 100644
--- a/common/pjpeg.c
+++ b/common/pjpeg.c
@@ -96,7 +96,7 @@ static uint8_t mjpeg_dht[] = { // header
     0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0A,0x0B,
 
     /////////////////////////////////////////////////////////////
-    // chrominance DC coefficents
+    // chrominance DC coefficients
     // DC table 1
     0x01,
     // code lengths
diff --git a/common/string_util.h b/common/string_util.h
index 2625838c..9a7cd1e4 100644
--- a/common/string_util.h
+++ b/common/string_util.h
@@ -86,7 +86,7 @@ int str_diff_idx(const char * a, const char * b);
  * contain the delimiter. The original string will remain unchanged.
  * If str is composed of all delimiters, an empty array will be returned.
  *
- * It is the caller's responsibilty to free the returned zarray, as well as
+ * It is the caller's responsibility to free the returned zarray, as well as
  * the strings contained within it, e.g.:
  *
  *   zarray_t *za = str_split("this is a haystack", " ");