<div dir="ltr">Thanks for the reply, Mike. The png is in fact fully opaque. This is the link to one of the png's I used that is all green that shows up as purple in chromakey (<a href="https://1drv.ms/u/s!AjoGLBAOTKwok4sEsN_oFHpyx8QhCA" style="font-family:Calibri;font-size:11pt">https://1drv.ms/u/s!AjoGLBAOTKwok4sEsN_oFHpyx8QhCA</a>). If there is a sample png and/or mp4 that works that I can look at, I can compare and see the differences.<br><div><p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt"> Alpha:</p><p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt"> min: 255 (1)</p><p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt"> max: 255 (1)</p><p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt"> mean: 255 (1)</p></div><div><p style="margin:0in 0in 0in 0.75in;font-family:Menlo;font-size:13.5pt;color:black"><span style="font-family:Calibri;font-size:11pt;color:rgb(34,34,34)">%identify -verbose leaf_1280_2.png </span></p><div>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">Image:
leaf_1280_2.png</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Format: PNG (Portable Network Graphics)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Mime type: image/png</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Class: DirectClass</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Geometry: 1280x616+0+0</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Resolution: 118.11x118.11</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Print size: 10.8374x5.21548</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Units: PixelsPerCentimeter</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Colorspace: sRGB</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Type: TrueColorAlpha</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Base type: Undefined</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Endianess: Undefined</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Depth: 8-bit</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Channel depth:</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Red: 8-bit</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Green: 8-bit</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Blue: 8-bit</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Alpha: 1-bit</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Channel statistics:</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Pixels: 788480</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Red:</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
min: 0 (0)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
max: 232 (0.909804)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
mean: 53.3939 (0.209388)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
standard deviation: 35.179 (0.137957)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
kurtosis: -0.222281</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
skewness: 0.380167</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
entropy: 0.873176</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Green:</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
min: 3 (0.0117647)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
max: 255 (1)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
mean: 143.551 (0.562945)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
standard deviation: 47.2475 (0.185284)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
kurtosis: -0.708943</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
skewness: -0.134383</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
entropy: 0.947618</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Blue:</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
min: 0 (0)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
max: 229 (0.898039)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
mean: 12.233 (0.0479725)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
standard deviation: 14.8046 (0.0580573)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
kurtosis: 12.2167</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
skewness: 2.40529</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
entropy: 0.615689</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Alpha:</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
min: 255 (1)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
max: 255 (1)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
mean: 255 (1)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
standard deviation: 0 (0)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
kurtosis: 8.192e+51</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
skewness: 1e+36</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
entropy: 0</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Image statistics:</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Overall:</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
min: 0 (0)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
max: 255 (1)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
mean: 116.044 (0.455076)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
standard deviation: 24.3078 (0.0953246)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
kurtosis: -1.46953</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
skewness: 0.326922</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
entropy: 0.609121</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Rendering intent: Perceptual</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Gamma: 0.45455</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Chromaticity:</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
red primary: (0.64,0.33)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
green primary: (0.3,0.6)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
blue primary: (0.15,0.06)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
white point: (0.3127,0.329)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Matte color: grey74</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Background color: white</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Border color: srgb(223,223,223)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Transparent color: none</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Interlace: None</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Intensity: Undefined</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Compose: Over</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Page geometry: 1280x616+0+0</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Dispose: Undefined</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Iterations: 0</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Compression: Zip</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Orientation: Undefined</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Properties:</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
date:create: 2019-03-18T18:29:52-05:00</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
date:modify: 2019-03-18T18:29:52-05:00</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
png:bKGD: chunk was found (see Background color, above)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
png:cHRM: chunk was found (see Chromaticity, above)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
png:gAMA: gamma=0.45455 (See Gamma, above)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
png:IHDR.bit-depth-orig: 8</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
png:IHDR.bit_depth: 8</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
png:IHDR.color-type-orig: 6</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
png:IHDR.color_type: 6 (RGBA)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
png:IHDR.interlace_method: 0 (Not interlaced)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
png:IHDR.width,height: 1280, 616</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
png:pHYs: x_res=11811, y_res=11811, units=1</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
png:sRGB: intent=0 (Perceptual Intent)</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
png:text: 2 tEXt/zTXt/iTXt chunks were found</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
png:tIME: 2019-03-18T13:27:15Z</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
signature:
c461e759eb2ea41bf96aa66d74a9c3a21e5f2a23c5d0003e56de23bbdde8eddb</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Artifacts:</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
verbose: true</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Tainted: False</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Filesize: 1.84901MiB</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Number pixels: 788480</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Pixels per second: 15.7696MP</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
User time: 0.070u</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Elapsed time: 0:01.049</p>
<p style="margin:0in 0in 0in 0.75in;font-family:Calibri;font-size:11pt">
Version: ImageMagick 7.0.8-33 Q16 x86_64 2019-03-13 <a href="https://imagemagick.org">https://imagemagick.org</a></p></div><br></div></div>