<div dir="ltr"><div><div><div><div><div><div>Hi all<br><br></div>I have some data from
different scenes of Landsat8 covering my area of interest. But after
mosaicking, it clearly shows the border line and the difference in
colors in the composites. <br><br></div>For example I am attaching two cases, one from <b>Sentinel2</b> and another from <b>Landsat8</b>. <br><br>I mosaicked two scenes of sentinel taken on the <b>same day,- November 19 2016</b>, and tried following commands to get a composite.<br><br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">i.colors.enhance blue=S2A_B02 green=S2A_B8A.hpf red=S2A_B11.hpf<br>r.composite blue=S2A_B02.hpf green=S2A_B8A.hpf red=S2A_B11 output=test_118A02<br></blockquote><br></div>And it works perfect, there is no sign that the image is from two scenes (attached - S2_19Nov2016comp_118A02.jpg ).<br><br></div>But
in the case of L8, it is more complicated as the data is coming from
three scenes. Two scenes are from the same orbit and third from adjacent
which has a different date. <br>For each scene, there are two acquisitions in November 2016 (Total six images in November 2016 for this g.region). <br>Hence I used r.patch and r.series to create a November month composite and with this, the color composite looks really bad.<br><br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">i.colors.enhance blue=L8_B02.hpf green=L8_B05.hpf red=L8_B06.hpf<br>r.composite blue=L8_B02.hpf green=L8_B05.hpf red=L8_B06.hpf output=test_652<br></blockquote><div><br></div><div>Please see attached "L8_Nov2016_comp_652.jpg"<br><br></div><div>Is
there anything I miss here to obtain a good composite over multiple
scenes taken from different dates, but from the same month?<br></div><br><br></div>Regards<br><br></div>Sajid<br></div>