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Transform_add_noise_v31

Adrian Quintana edited this page Dec 11, 2017 · 1 revision

!xmipp_transform_add_noise (v3.1)

Usage

Add random noise to the input images. Noise can be generated using uniform, gaussian or t-student distributions.

Parameters

$``: Input file: metadata, stack, volume or image. $--mode &lt;modeoverwrite> where <mode> can be:

    • $--label &lt;image_labelimage> $-o, --output &lt;output_file> $--oroot &lt;root> $--save_metadata_stack &lt;output_md> $: Store the original image filename in the output metadata in column imageOriginal. $: Preserve the columns from the input metadata. Some of the column values can be changed by the program. $``: Type of noise to add where <rand_mode> can be:
    • $: Crop noise histogram below this value $: Crop noise histogram above this value

Examples and notes

Add noise to a single image, writing in different image:

xmipp_transform_add_noise -i cleanImage.spi --type gaussian 10 5 -o noisyGaussian.spi
FollowingcleanImage.spi at left andnoisyGaussian.spiat right: Add uniform noise to a volume, overriding input volume:
xmipp_transform_add_noise -i g0ta.vol -uniform -0.1 0.1

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